Thanks for that and as promised here is a pic of the flats all done. The finished collet block pics are in the Project of the Day Thread (will be soon anyways). Using ooil sure makes for a mess but I couldn't do this without it. Learn something new all the time.
Wreck - thanks for that link. I have been milling with about 75% of the cutter engaged in the cut and will try 50% on the next run. By the way, after I reduced the speed, feed and used lube I didn't get any more of those long strands.