CO-BUT vs smallish sizing I prefer putting 77 in the C3B-range

XC seems standard (enough EQ + villain will CB this board quite wide), planning to fold to a second barrel on most turns

I'm pretty close to the bottom of my range that I arrive on OTR. When villain XB OTT, he most likely is pretty damn capped.
When I bet the normal amount, I expect Jx to call way more often than not. If this is so, it doesn't really make sense to turn a hand with so much SDV into a bluf.
Yet when I bet really big, I believe he will fold Jx pretty much always, and might even fold some weak Kx.
I believe my line is quite credible (87s, JJ/66/44, KJs all in my range) in his eyes, and it's hard to find blufs for me.
I think this is a higher EV line than both X and B63%, and at worst it is similar EV (in which case I would make more with my valuehands that employ this sizing)

Fine?