diff --git a/ksw2_exts2_sse.c b/ksw2_exts2_sse.c
index efb661e..109d9bb 100644
--- a/ksw2_exts2_sse.c
+++ b/ksw2_exts2_sse.c
@@ -68,7 +68,6 @@ void ksw_exts2_sse(void *km, int qlen, const uint8_t *query, int tlen, const uin
 	uint8_t *qr, *sf, *mem, *mem2 = 0;
 	__m128i q_, q2_, qe_, zero_, sc_mch_, sc_mis_, sc_N_, m1_;
 	__m128i *u, *v, *x, *y, *x2, *s, *p = 0, *donor, *acceptor;
-	const int sp0[4] = { 8, 15, 21, 30 };
 
 	ksw_reset_extz(ez);
 	if (m <= 1 || qlen <= 0 || tlen <= 0 || q2 <= q + e) return;
@@ -119,45 +118,16 @@ void ksw_exts2_sse(void *km, int qlen, const uint8_t *query, int tlen, const uin
 	memcpy(sf, target, tlen);
 
 	// set the donor and acceptor arrays. TODO: this assumes 0/1/2/3 encoding!
-	if ((flag & (KSW_EZ_SPLICE_FOR|KSW_EZ_SPLICE_REV)) && !(flag & KSW_EZ_SPLICE_CMPLX)) {
-		int semi_cost = flag&KSW_EZ_SPLICE_FLANK? -noncan/2 : 0; // GTr or yAG is worth 0.5 bit; see PMID:18688272
-		memset(donor, -noncan, tlen_ * 16);
-		memset(acceptor, -noncan, tlen_ * 16);
-		if (!(flag & KSW_EZ_REV_CIGAR)) {
-			for (t = 0; t < tlen - 4; ++t) {
-				int can_type = 0; // type of canonical site: 0=none, 1=GT/AG only, 2=GTr/yAG
-				if ((flag & KSW_EZ_SPLICE_FOR) && target[t+1] == 2 && target[t+2] == 3) can_type = 1; // GTr...
-				if ((flag & KSW_EZ_SPLICE_REV) && target[t+1] == 1 && target[t+2] == 3) can_type = 1; // CTr...
-				if (can_type && (target[t+3] == 0 || target[t+3] == 2)) can_type = 2;
-				if (can_type) ((int8_t*)donor)[t] = can_type == 2? 0 : semi_cost;
-			}
-			for (t = 2; t < tlen; ++t) {
-				int can_type = 0;
-				if ((flag & KSW_EZ_SPLICE_FOR) && target[t-1] == 0 && target[t] == 2) can_type = 1; // ...yAG
-				if ((flag & KSW_EZ_SPLICE_REV) && target[t-1] == 0 && target[t] == 1) can_type = 1; // ...yAC
-				if (can_type && (target[t-2] == 1 || target[t-2] == 3)) can_type = 2;
-				if (can_type) ((int8_t*)acceptor)[t] = can_type == 2? 0 : semi_cost;
-			}
-		} else {
-			for (t = 0; t < tlen - 4; ++t) {
-				int can_type = 0; // type of canonical site: 0=none, 1=GT/AG only, 2=GTr/yAG
-				if ((flag & KSW_EZ_SPLICE_FOR) && target[t+1] == 2 && target[t+2] == 0) can_type = 1; // GAy...
-				if ((flag & KSW_EZ_SPLICE_REV) && target[t+1] == 1 && target[t+2] == 0) can_type = 1; // CAy...
-				if (can_type && (target[t+3] == 1 || target[t+3] == 3)) can_type = 2;
-				if (can_type) ((int8_t*)donor)[t] = can_type == 2? 0 : semi_cost;
-			}
-			for (t = 2; t < tlen; ++t) {
-				int can_type = 0;
-				if ((flag & KSW_EZ_SPLICE_FOR) && target[t-1] == 3 && target[t] == 2) can_type = 1; // ...rTG
-				if ((flag & KSW_EZ_SPLICE_REV) && target[t-1] == 3 && target[t] == 1) can_type = 1; // ...rTC
-				if (can_type && (target[t-2] == 0 || target[t-2] == 2)) can_type = 2;
-				if (can_type) ((int8_t*)acceptor)[t] = can_type == 2? 0 : semi_cost;
-			}
-		}
-	} else if (flag & (KSW_EZ_SPLICE_FOR|KSW_EZ_SPLICE_REV)) { // use the complex splice model
+	if (flag & (KSW_EZ_SPLICE_FOR|KSW_EZ_SPLICE_REV)) {
+		const int sp0[4] = { 8, 15, 21, 30 };
 		int sp[4];
-		for (t = 0; t < 4; ++t)
-			sp[t] = (int)((double)sp0[t] / 4. + .499);
+		if (flag & KSW_EZ_SPLICE_CMPLX) {
+			for (t = 0; t < 4; ++t)
+				sp[t] = (int)((double)sp0[t] / 4. + .499);
+		} else {
+			sp[0] = flag&KSW_EZ_SPLICE_FLANK? noncan / 2 : 0;
+			sp[1] = sp[2] = sp[3] = noncan;
+		}
 		memset(donor,    -sp[3], tlen_ * 16);
 		memset(acceptor, -sp[3], tlen_ * 16);
 		if (!(flag & KSW_EZ_REV_CIGAR)) {
diff --git a/main.c b/main.c
index 1e37d33..ecb4ab9 100644
--- a/main.c
+++ b/main.c
@@ -33,7 +33,7 @@ static ko_longopt_t long_options[] = {
 	{ "min-dp-len",     ko_required_argument, 308 },
 	{ "print-aln-seq",  ko_no_argument,       309 },
 	{ "splice",         ko_no_argument,       310 },
-	{ "splice-model",   ko_no_argument,       311 },
+	{ "splice-model",   ko_no_argument,       'J' },
 	{ "cost-non-gt-ag", ko_required_argument, 'C' },
 	{ "no-long-join",   ko_no_argument,       312 },
 	{ "sr",             ko_no_argument,       313 },
@@ -120,7 +120,7 @@ static inline void yes_or_no(mm_mapopt_t *opt, int64_t flag, int long_idx, const
 
 int main(int argc, char *argv[])
 {
-	const char *opt_str = "2aSDw:k:K:t:r:f:Vv:g:G:I:d:XT:s:x:Hcp:M:n:z:A:B:O:E:m:N:Qu:R:hF:LC:yYPo:e:U:j:";
+	const char *opt_str = "2aSDw:k:K:t:r:f:Vv:g:G:I:d:XT:s:x:Hcp:M:n:z:A:B:O:E:m:N:Qu:R:hF:LC:yYPo:e:U:j:J";
 	ketopt_t o = KETOPT_INIT;
 	mm_mapopt_t opt;
 	mm_idxopt_t ipt;
@@ -187,6 +187,7 @@ int main(int argc, char *argv[])
 		else if (c == 'R') rg = o.arg;
 		else if (c == 'h') fp_help = stdout;
 		else if (c == '2') opt.flag |= MM_F_2_IO_THREADS;
+		else if (c == 'J') opt.flag |= MM_F_SPLICE_CMPLX; // --splice-model
 		else if (c == 'o') {
 			if (strcmp(o.arg, "-") != 0) {
 				if (freopen(o.arg, "wb", stdout) == NULL) {
@@ -205,7 +206,6 @@ int main(int argc, char *argv[])
 		else if (c == 308) opt.min_ksw_len = atoi(o.arg); // --min-dp-len
 		else if (c == 309) mm_dbg_flag |= MM_DBG_PRINT_QNAME | MM_DBG_PRINT_ALN_SEQ, n_threads = 1; // --print-aln-seq
 		else if (c == 310) opt.flag |= MM_F_SPLICE; // --splice
-		else if (c == 311) opt.flag |= MM_F_SPLICE_CMPLX; // --splice-model
 		else if (c == 312) opt.flag |= MM_F_NO_LJOIN; // --no-long-join
 		else if (c == 313) opt.flag |= MM_F_SR; // --sr
 		else if (c == 317) opt.end_bonus = atoi(o.arg); // --end-bonus
@@ -324,7 +324,7 @@ int main(int argc, char *argv[])
 		fprintf(fp_help, "    -H           use homopolymer-compressed k-mer (preferrable for PacBio)\n");
 		fprintf(fp_help, "    -k INT       k-mer size (no larger than 28) [%d]\n", ipt.k);
 		fprintf(fp_help, "    -w INT       minimizer window size [%d]\n", ipt.w);
-		fprintf(fp_help, "    -j INT       syncmer submer size (overriding -w) []\n");
+//		fprintf(fp_help, "    -j INT       syncmer submer size (overriding -w) []\n");
 		fprintf(fp_help, "    -I NUM       split index for every ~NUM input bases [4G]\n");
 		fprintf(fp_help, "    -d FILE      dump index to FILE []\n");
 		fprintf(fp_help, "  Mapping:\n");
diff --git a/minimap.h b/minimap.h
index 3d2440f..a431e5a 100644
--- a/minimap.h
+++ b/minimap.h
@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <sys/types.h>
 
-#define MM_VERSION "2.24-r1160-dirty"
+#define MM_VERSION "2.24-r1161-dirty"
 
 #define MM_F_NO_DIAG       0x001 // no exact diagonal hit
 #define MM_F_NO_DUAL       0x002 // skip pairs where query name is lexicographically larger than target name