I redirect mine with every dressing change. To keep the hose from pulling against the hole I make a small loop of the hose. The loop laying on top of the gauze dressing so that the tape sticks to the whole loop, except that very small section from the actual hole, laid over and coming out from under the gauze. All the rest of the loop is taped. Enough that if I were to solidly pull on the transfer set the entire force is contained by the tape. The hose at the hole never sees or feels any movement.
My nurses have always encouraged me to watch the natural direction that my tube tries to hang in, and tape it so that it DOESN'T rotate. According to them, rotating it will cause the exit site to stretch and cause scabbing, which is very uncomfortable and risky as far as infection goes.