When i´m playing against a BB who likes to xR a lot ( 20%+ ), i think it´s fine put this hand into my check-behind range, so i don´t have to face a raise with a hand who has near to 50% equity against a random 30% big blind defend range.

But now we get to the turn i have a difficult time recognozing if this a 1 street bet, or should i just fold turn when i face his bet. What this deppends ? And with a hand like A6 we play the same, or now we are obligated to float turn and fold river ? I would like to know what GTO says about this spot.

and going a little further ..

If i am checking behind a lot, i should have at least some hands to raise him when i face his turn bet, if i don´t do it looks like i ´ll be folding too much turn, or floating air which i don´t like. How important do you think is have a raise-turn-donk-bet-range in this kind of spots against decent players. I don´t have a cbh flop + raise turn range, and i wouldn´t know what hands include it. Obviously i could check behind some nut hands in flop, and raise the turn, but is this optimal when i know that if i bet the flop i gonna be raised a huge amount of time ? 

Any thoughts are welcome... ! ;)