Muzzer,
I've had very little time to play recently but the most punishing test to date is using a 6mm 2-flute end mill on Tasmanian Oak. Depth of cut 22mm, Stepover 0.25 (1.5mm), speed 1200rpm, feed 2500mm/min.
One of my main reasons for wanting to use this kind of cutting is for wooden gear wheels. Shallow depths of cut tend to chip the teeth where the grain is tangential to the disc of the wheel. Large depths of cut using the trochoidal plug-in for CamBam fixes thing. No smoke as yet!

m_c,
The trocho tool paths are quite mezmerising. I have the 'smooth chords' option set true which gives smoother movements between cuts which reduces jerks and accel/decel delays.