Update:
First gig with my Shure's this past Saturday.
Went exactly as I'd hoped. We got there early, and were the first band (which helped) and I just ran an XLR from my Aux Send monitor channel to my PSM200 transmitter, and basically just had the FOH mix in my ears, plus a lil more bass and went great.
The signal was clipping a little bit but my drummer uses in ears also and said the same thing and they usually don't, so I think it was a problem at the board and not my unit, so I didn't complain too much. I know my Westone's can handle a lot, and only the bass was OD'ing so he probably just had my Gain on my channel too high but whatever LOL. Was just happy to have MY own mix again and hear myself. Everyone in the band was like "man, that's one of the best sounding shows we've ever had" and I totally agreed. Amazing what an extra 5-7 minutes of having WORKING MONITOR MIXES does...
Also I only brought alone 1 PH212 cab, popped off the back casters and just tilted it up. It was a little light on the volume but since it was coupled to the stage I could still feel it and add that to the in ear mix, it was just fine. Fingers crossed it keeps being this easy!
Maybe here in a few mo's or whatnot I'll upgrade to a better IEM system if I keep getting good results. I know the Sennheiser G3/G4 stuff is pretty rad altho kinda pricey. But with in ears, you really do get what you pay for.