ccl117,

Here's what I've found.  Please tell me if you can duplicate these results:

1.  With Spillover Off and KillDry on, dry signal leaks through on every preset change, no matter what the interval (of time) between the changes.   That is, there is always a bug that shouldn't be there.   

2. With Spillover On and KillDry On, dry signal leaks through when I change a preset within 5 secs of a previous preset change.  You shouldn't get the dry leak bug if you keep your preset changes at least 5 secs. apart in this configuration.  Can you confirm this?