diff --git a/swash/processing/mat_npz.py b/swash/processing/mat_npz.py
new file mode 100644
index 0000000..5a603cd
--- /dev/null
+++ b/swash/processing/mat_npz.py
@@ -0,0 +1,52 @@
+import argparse
+import configparser
+from datetime import datetime, time
+import logging
+import pathlib
+import re
+from multiprocessing.pool import ThreadPool
+
+import numpy as np
+import scipy.io as sio
+
+parser = argparse.ArgumentParser(description="Convert swash output to numpy")
+parser.add_argument("-v", "--verbose", action="count", default=0)
+parser.add_argument("-c", "--config", default="config.ini")
+args = parser.parse_args()
+
+logging.basicConfig(level=max((10, 20 - 10 * args.verbose)))
+log = logging.getLogger("sws_npz")
+
+log.info("Starting sws -> npz converter")
+config = configparser.ConfigParser()
+config.read(args.config)
+
+sws_out = pathlib.Path(config.get("swash", "out"))
+inp = pathlib.Path(config.get("post", "inp"))
+inp.mkdir(parents=True, exist_ok=True)
+
+log.info(f"Reading swash output from '{sws_out}'")
+raw_tsec = sio.loadmat(sws_out.joinpath("tsec.mat"))
+i = np.fromiter((k[5:] for k in raw_tsec.keys() if re.compile(r"^Tsec_").match(k)), dtype="U10")
+t = np.fromiter((raw_tsec[f"Tsec_{k}"][0,0]*10**3 for k in i), dtype=np.uintc)
+np.save(inp.joinpath("t"), t)
+del raw_tsec
+raw_xp = sio.loadmat(sws_out.joinpath("xp.mat"), variable_names="Xp")
+x = raw_xp["Xp"][0]
+np.save(inp.joinpath("x"), x)
+del raw_xp
+
+raw_botl = sio.loadmat(sws_out.joinpath("botl.mat"), variable_names="Botlev")
+botl = raw_botl["Botlev"][0]
+np.save(inp.joinpath("botl"), botl)
+del raw_botl
+
+raw_watl = sio.loadmat(sws_out.joinpath("watl.mat"))
+watl = np.asarray([raw_watl[i0][0] for i0 in np.char.add("Watlev_", i)], dtype=np.single)
+np.save(inp.joinpath("watl"), watl)
+del raw_watl
+
+raw_vel = sio.loadmat(sws_out.joinpath("vel.mat"))
+vel_x = np.asarray([raw_vel[i0][0] for i0 in np.char.add("vel_x_", i)], dtype=np.single)
+np.save(inp.joinpath("vel_x"), vel_x)
+del raw_vel
diff --git a/swash/sws/SPEC_buoy.sws b/swash/sws/SPEC_buoy.sws
index 9b67115..7d10a9b 100644
--- a/swash/sws/SPEC_buoy.sws
+++ b/swash/sws/SPEC_buoy.sws
@@ -3,12 +3,12 @@ PROJ 'GW' 'T1'
 SET NAUT
 SET LEVEL 4.5
 SET MAXERR 1
-SET DEPMIN 0.01
+$SET DEPMIN 0.001
 MODE NONST ONED 
 $************************     GRIDS     ***************************************
 CGRID REG -1450 0 0 1750 0 1750 0 
 INPGRID BOT REG -1450 0 0 1750 0 1 0   $x0 y0 theta nx-1 ny-1 dx dy  
-VERT 4
+VERT 2
 READ BOTTOM -1 'bathy.dat' 3 0 FREE
 
 INPGRID PORO REG -1450 0 0 1750 0 1 0
@@ -22,7 +22,8 @@ READINP HSTRUC 1 'hstru.dat' 3 0 FREE
 
 $***********************   BOUNDARIES  ****************************************
 INIT ZERO  
-BOUN SIDE W BTYPE WEAK SMOOT 10 SEC ADDBOUNDWAVE CON SPECFILE 'spec.dat'
+BOUN SHAP JON SIG PEAK DSPR DEGR
+BOUN SIDE W BTYPE WEAK SMOOT 10 SEC ADDBOUNDWAVE CON SPECT 7.31 16.9 0 0 CYCLE 20 MIN
 SPON E 250
 
 
@@ -39,6 +40,21 @@ TIMEI 0.2 0.6
 
 $***********************   OUTPUTS  *******************************************
 SET OUTLEV 1 
-BLOCK 'COMPGRID' NOHEAD 'out.mat' LAY 3 TSEC XP DEP BOTL WATL PRESS NHPRSK PRESSK VEL VZ VELK ZK OUTPUT 000000.00 0.25 SEC
-COMPUTE 000000.000 0.015 SEC 000100.000 $timeini dtini unit timefin
+$BLOCK 'COMPGRID' HEAD 'test.txt' LAY 4 TSEC XP DEP BOTL WATL PRESS DISCH USTAR VEL VZ VELK ZK BRKP OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'tsec.dat' TSEC OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'xp.dat' XP OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'dep.dat' DEP OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'botl.dat' BOTL OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'watl.dat' WATL OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'press.dat' PRESS OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'nhprsk.dat' NHPRSK OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'pressk.dat' PRESSK OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'disch.dat' DISCH OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'ustar.dat' USTAR OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'vel.dat' VEL OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'vz.dat' VZ OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'velk.dat' VELK OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'zk.dat' ZK OUTPUT 000000.00 0.25 SEC
+BLOCK 'COMPGRID' NOHEAD 'brkp.dat' BRKP OUTPUT 000000.00 0.25 SEC
+COMPUTE 000000.000 0.015 SEC 002500.000 $timeini dtini unit timefin
 STOP