Nat,

I'm using a 2 flute compression bit at 12,000RPM at 6IPS.
Conventional cut, 2 pass (max .4")

I tried 8IPS today and had just too much deflection.

I have .020" tolerance set up in eCabinets for dado fit. The fit is a little sloppy. I'll have to narrow this down with more experience in cutting with the Link.

Something I found in using the Link with a good nesting engine is bit deflection is not a big problem. Because you tell the Link how much space you want left over between parts after the bit has cut it's first part. I have it set to .010". The bit only has to cut .010" off the next part. Granted not all parts have another one next to it but this seems to help.