Okay, I think the A154 as currently proposed doesn't do variable step
length and midi sync at the same time, I believe the clock input jack
shorts out the clock generator.

Now I'm back to thinking about buying an A163 VC divider for to get
variable step length with midi sync. But ringmod's question got me
thinking. The A163 doesn't have a reset input like the A160 clock
divider does. Won't it end up in an indeterminate state when you reset
the master clock That would mean the clock pulses from the A163 could
be as much as 180 degrees out of phase with the master clock, a
half-step delay.

Has anyone tried this Is there any way to do what I want to do

Joe