I replace my internal regs, especially AMP, with Huma regs first sign of trouble.FX shoot great but are very unreliable in my experience. The amp reg in particular. Tiny little thing that is a bit of a pain to work on and they leak. I’ve had 3-4 fail in the last 1.5 years. I have a wildcat mk3 right now I wanted to sell but it has the tiniest leak in reg 1. Won’t sell like that. However it’s so slow right now I don’t want to tear it out and mess with it. One thing I am pretty sure about at this point. That is the last FX I will ever own.