I never check back my entire range. If I flop the nuts, then I bet for value, unless I have total board lock like JJ on JJ2 rainbow, where I might check as a slowplay. But I dont check to "protect my checking range", since I dont think, this is nessesary in low stakes online tournaments. I C-bet less out of position, against multible opponents and on wet board. For instance I would normally check


on



, because this is a pretty terrible board, and I want to try to get to a cheap showdown with my overpair. But if I have something, that connects well with the board, like for instance


,


or


, then I still bet.