diff --git a/iocs/dsmIOC/iocBoot/iocDsm/motor.substitutions.md90 b/iocs/dsmIOC/iocBoot/iocDsm/motor.substitutions.md90
index 4a6fc6d..40e4e4a 100644
--- a/iocs/dsmIOC/iocBoot/iocDsm/motor.substitutions.md90
+++ b/iocs/dsmIOC/iocBoot/iocDsm/motor.substitutions.md90
@@ -1,6 +1,26 @@
 file "$(MOTOR)/db/basic_asyn_motor.db"
 {
 pattern
-{P,    N,  M,       DTYP,       PORT,  ADDR,  DESC,   EGU, DIR, VELO, VBAS, ACCL, BDST, BVEL, BACC, MRES,   PREC, DHLM, DLLM, INIT}
-{DSM:, 0, "m$(N)", "asynMotor", MD900, 0,    "MD-90", mm,  Pos, 2.0,  0.1,  .2,   0,    1,    .2,   .00001, 2,    20,   -20,  ""}
+{P,    N,  M,       DTYP,       PORT,  ADDR,  DESC,   EGU, DIR, VELO, VBAS,  VMAX,  ACCL, BDST, BVEL, BACC, MRES,   PREC, DHLM, DLLM, INIT}
+{DSM:, 0, "m$(N)", "asynMotor", MD900, 0,    "MD-90", mm,  Pos, 0.5,  0.025, 0.625, 0,    0,    0.03, 0,    .00001, 2,    20,   -20,  ""}
 }
+
+# P		IOC prefix
+# N		Port number
+# M		Record name pattern
+# DTYP	Datatype
+# PORT	Port
+# ADDR	Address
+# DESC	Description
+# EGU	Engineering units
+# DIR	Direction
+# VELO	Velocity (EGU / s)
+# VBAS	Minimum velocity (EGU / s)
+# VMAX	Maximum velocity (EGU / s) (not getting set here with basic_asyn_motor.db)
+# ACCL	Acceleration (time in seconds until VELO)
+# BDST	Backlash distance
+# MRES	Motor step size (EGU)
+# PREC	Display precision number of decimal places
+# DHLM	Dial high travel limit (EGU)
+# DLLM	Dial low travel limit (EGU)
+# INIT	Initialization string (seems to be unused/broken)