I am using an analog AutoMeter gauge... might be closer to 18psi... i know it spools really fast compared to when I first started out, and it's close enough to 20 to feel like an improvement... but based on the math of the td04, 20psi isn't going to last long if it could even muster it. I felt like maxing it out until it burns up the bearing though. It's going to take a failure to justify a replacement with my family... I apologize for just throwing that number out here... yah, more like 18 with luck.
as for antilag, no, i am not using any form of added-on electronic launch control. I have a manual boost controller, never had a problem with it, it seems pretty snappy. I get boost a lot earlier with it than with the stock BCS.