I'm at the finishing touches of a shower remodel and the seemingly easiest task is giving me a bit of trouble. When installing the shower arm I can get it hand really tight to around 12:00 position (arm up). I am afraid to use a screwdriver and put too much torque on it to get it down to the proper position. If I use more Teflon tape it might help. Is there a limit to how many revolutions of tape I can use? I'm thinking of up to 8 and was wondering if that is too many?