In any case DougL thanks heaps for the manner to get rid of the pop and the F8 to expedite accomplishing the task. I downloaded a modified 20143 tune with this and a couple other mods including 100% secondaries. IT, the no-pop decel mod, works PURRRfect. Like a 800 lb church mouse, quiet

absolutely!
Speaking of 100% secondaries, I had a modified 20143 that I'd gradually increased the ramp up toward 100% but was rather quite conservative out of desire to get the feel of the added power slowly. Let's call it training wheels. The 20143 download today had the secondaries all 100% open. I didn't need the training wheels. Perhaps this is because I've yet to fully exercise the full potential of the bottom end.