John: 5/8" maple plywood. 5 passes at 0.125" depth of cut using a 1/4" straight cutter. (Sorry, John... My mistake in an earlier post.)
Steve: Not insulting. We will not be using compression bits. We ordered a bunch of 1/4" straight plunge, 2-flute bits. Our tolerances for the finished cut are not that tight.
Note: We are using VCarvePro 8.5 and when editing passes, we do not find the ability to assign a "CLIMB" or "CONVENTIONAL" direction to each pass. Maybe we need to upgrade to 9.0?