Thanks for the input everyone. I guess I just love this type of disc in general, and I wanted to see what everyone thought, as far as what's slower, or what disc just dumps right out of the hand.
I'll see about getting a Credo, but that's gonna be a lot harder to get backups for if I end up liking it, since I know I'm NEVER gonna see one at Play it Again.
I didn't even think about MVP/Axiom. I'll have to check out that Envy, too.
As far as plastic goes, I don't necessarily need one that "sticks", I'm more concerned about it being overstable. And R-Pro isn't terrible for an approach putter, but still, if I like a disc, I like to know I have options. I had like 5 Pigs at one time, and starting throwing the Suspect instead. I liked having a durable thrower and a baseline one that would be a little glidier, or for slightly longer shots, wouldn't dump quite as fast.
And, "Yes", I will be throwing at concrete. My home course has "wheelchair accessible" pathways all throughout, and a big concrete pad around half of the baskets. It sucks to make an approach shot, knowing if you don't hit chains you're gonna end up with road rash.