PF>     1) no spin loops (this goes without saying,  right??!!)

Huh? I have to make sure I don't miss any keyboard characters! 
Besides, it's discrimination... OS/2 can have spin lox but I can't
have spin loops? Phooey! I'm TIRED of marty loops.

PF>     2) don't use priority class "idle, 0".
(I sort of got that idea from reading your posts...)

___
 X KWQ/2 1.2g X See the NinetyEast Trench before it's gone!
--- Maximus/2 2.02