Looped playback could drop a few ticks at the end of each loop; fixed.
1.0.16.001
Polymeter Help
Polymeter Help
1.0.16.000
Polymeter Help
Possible modulate scalloped wall to be flush with non-scalloped layers
In the future please include the PotterDraw file so that I can better assist you; photos are helpful but not enough. However in this case it seems you solved your issue and don't need my assistance after all, so I'm closing the ticket. In general, what you are trying to do is certainly supported. PotterDraw supports a wide range of operations for both primary functions and modulators, and some combination of those operations will produce the intended result.