Altmill Feeds and Speeds for Birch

Just wondering if anyone has maxed out a compression bit? I have an IDC Woodcraft 1/4” compression bit and an Altmill. IDC has some pretty conservative ratings for the bit compared to the Altmill max of 600ipm. So, cutting 1” birch plywood. Have done in two passes but going to move to one. I just don’t want to break my bit. Any feeds and speeds suggestions?

1/4” bit with a depth of cut of 1” …. Holy cow ….

I always worked with the ballpark Max DOC = cutter diameter and I have pushed it to 2* cutter diameter while holding my breath, crossing fingers, crossing toes and knocking on wood ….

I think you’d be better off setting it to the correct chipload running more than one pass than trying to cut in one pass at a slower (incorrect) feedrate, e.g. chipload.