globs were actually from TOO much pressure
I'm only using very light pressure now on the new buff while regularly spraying kerosene on the part. Using colour stroke only, gently and slowly going side to side as i push the part through.
working very well I must say...not perfect, but very well.
here is the result (a three barrel, two stage throttle body from a 95 model Mazda RX-7):
Excuse the grainy picture quality - I've compressed these images a lot to reduce them in size
