Thanks for the interest. I'm kind of running past the computer today, but tonight I'll sit down and look into all of your suggestions. I don't have a Tee Dee, just Black Widows, but they make some high flow (Killer Bee) backplates
for them now, to run with an external supply.
I just got one of the new style SPI cylinder/short-piston sets in the mail yesterday. I broke it in today on a babe-bee. I'm going to put it on the Stuntman engine and see if that doesn't give it a little boost. I'll be posting the results in that thread.