In a 1590a, I may be crazy! But given how well Madbean documents his builds, I think it'll be a dandy pedal when complete. I finished the last circuit step tonight by matching pairs of 2n5457 JFETs and actually have a few close matches out of 20 devices. I like the Phase 45 better than the 90, it's "chewier" or something that just makes me smile when kicking it on. I had replaced the guts of my old DOD Phasor 201 from the 70's with a General Guitar Gadgets kit, the old DOD developed a ticking at the output that I couldn't solve even after replacing the electrolytics. I didn't want to keep after that old board and it wasn't true bypass, so I put it away and subbed the GGG. When DOD was blowing out all their pedals a little while ago I picked up a new 201 and gave my Phase 90 to my son. I've been having a lot of fun with these 1590A's and time to experiment with some small Vero builds in the future that should fit in an A size box. I think I may just use Madbean's drill templates for stuff like that, they're really good, I've built four so far plus the "Smoothie" phaser (LPB boost, Rangemaster with charge pump, Orange Squeezer comp, Flatline optical comp) and they've all gone together very nicely. FuzzDog has a range of A size builds too...hmmm But next in the queue is the Electric Druid Flangelicious, and that sure won't fit in a 1590A!