I think you should fold the turn. Once the Jack hits your TT is now a mediocre holding, The big blind's turn checkraise will usually be more than just a jack, and the middle guy calling the checkraise does pose a threat to you for he may have you beat also and even if he doesnt, he can still have somekind of a draw that will improve to beat your hand on the river the few times your hand is best. About how to aproach this hand versus certain player types....I think you should ignore whether hes a tag or lag, it comes down to being aware of what your opponent is capable of, there are tricky tags/lags, and there are nontricky tags/lags.