I have only 100 hands on villain, so far he's 26/21, 3/4 fold to 3-b. Not too much to take away from that but the fact that he's a reg for now.

First question, regarding Flopplay: How do we construct a reasonable checkback-range here? I'd assume we check TT, big draws like QsJs and AxAs some percent of the time?
Secondly, what raising-range do we assign villain considering he's basically unknown? I was going w almost all FDs (some nutfds, some combodraws), some bd-draws like KcJc and all 2-p+ - comments on that?

Lastly, playing around w CREV - and I have no idea if this is in any way correct tbh - I came to the conclusion that, if I call 2-p+/AA w/o the As, I'd roughly call 66% of my riverrange, which makes KK a clear fold if we just look at it this way. But....can we even just look at it this way, if you know what I mean?