Hey guys, finally back home and had the time to go through this once more. It appears screwed the pooch on this one: I forgot I had stacked the radios opposite and was plugging into the RX radio the whole time when testing the mic 
I just went in, double checked both radios’ programming, and double checked my handhelds I’m testing with and all is well. The repeater is functioning now, no probs! Now to test some different frequencies - provided that still works, I’ll be linking up to AllStar! Woohoo!
Thanks again to all those who chimed in. I’ll let you guys know if I have any other (real) issues!
73