Good result chris I've gotta be honest i had nothing but troubles with holding consistent boost levels when i used a bleed valve, mine on a standard turbo would hold 16psi with a brand new -31 many years ago and that was all it had in it.....electronic boost controllers aren't cheap but honestly mate the best money i ever spent! Controls the boost so well, can iron out nasty spikes and have mine set so it peaks and holds the same boost bar maybe 1 psi or so.