I think next time I'll change the last toolpath to Z level finish. This is what I used.
Advance rough with a shaped stock: 3/4"- 3flute upshear rougher/hogger, 16k rpm, 3/8"x3/8" steps, 1200ipm.
Planer semirough: 1/2"- 4flute upshear ballnose, 16k rpm, .15" stepover, 900ipm.
Planer finish 0 degree: 1/4"- 4flute upshear ballnose, 18.5k rpm, .03" stepover, 750ipm.
Planer finish 90 degree: 1/4"- 4flute upshear ballnose, 18.5k rpm, .03" stepover, 750ipm.
Definitely can use some clean out with an 1/8" ballnose. Maybe a Z level pass with a bottom limit of .5" would keep the bit from crashing.
I'll upload video if someone gives me some pointers.
Forrest