In my case boost would drop to 20 psi. In other cases i have seen it drop to 19 psi. After I wired the WG shut, I held 24 psi to redline
If you only plan to run 19-20 psi, you should be fine. The larger actuator is always a good idea, but there really arent any simple, inexpensive bolt on options. People have tried helper springs and the like, but it never seems to work well in every circumstance. If you are willing to make it work for your setup, start looking around for springs or other actuators. But dont follow what other people do, it often wont work on another car. Another thing I am not a big fan of is adjustable actuators. When I would set mine loose enough to get boost creep below 20 psi, I couldnt hold over 23 psi. If I tightened it up to get over 23 psi, it would creep to over 20 psi. Very small window of adjustment there. A stronger actuator spring is really the only way to go. Only use adjustable rods for setting preload properly (done on typical mitsu actuators by bending the bracket). I would start with Mike at SBR, I've talked to him extensively about this, and he has several actuator options that may or may not bolt up without maing new holes. Or you can talk to your favorite turbo vendor that has good success in offering internal gates. The important thing to discuss is the range of boost YOU intend to run, not that other guy that says "I have X turbo with an internal and it works for me" lol Hope that helps.