I currently run a SB Heavy 10 lathe and Bridgeport mill off a Phase-a-Matic R3? and never had any issues with my light use. However, I've picked up a couple of 5hp saws and would like to get a larger lathe at some point. I know the basics of converters like staying away from static units, 1.5 X max load, etc, but figure there's some good knowledge here to benefit from. I don't see running multiple machines at once nor having anything over 10hp. So my thinking has been a 15hp rated unit but that's about as far as I've gotten. I have 100amp service into my shop. I know they can be built but I'd rather just buy something theoretically built by someone that knows what they're doing. I'm happy with my small Phase-a-Matic but the bigger units are pricey compared to some of the other brands I see on ebay. And every time I dig deeper into one of the mfgs on ebay I get a lot of mixed reviews. I also really want a single unit that can run anything I have vs multiple VFDS like I think I'd need if I went that route (and I'm even less knowledgeable about those to begin with). Any thoughts, recommendations?