Yeah, I think I'd rather do a flash than a piggy back, on the fly adjustability might be nice, but, I've never been a big fan of trying to "fool" the computer.
It was all I could do today to finish the last street car, go fill the N2 tank, load the trailer and point the truck out the driveway, so no test flash for this run. I'm whooped, so I'm turning in now.