I am building my first non-crystal MAM and doing well so far except it takes forever to clear the MAM of the pieces form the MAM when switching to new shape. If if do a manual clear using the "I" key it builds the shape in about a minute, however if just left alone it can take 5-10 minutes for the MAM to transition to new shape, from all the left over parts from last shape.
Anyone have suggestions to speed this up for unattended run?