trying to finish the drain for a new tub I installed where there was a shower. My problem comes from the holes in the joist from the original 2" drain line. For the trap to be high enough for the sheetrock to go back, I would need to cut the hole about 1" higher than what is there, (see pic 1). This would put the size of the hole at or just above the max size hole that I can cut in the joist without compromising its strength. if I run it to the right, (pic 2) I would have to put in a 90 degree bend to send it back to the line that it was running to, just further down the line. I know that having turns in a drain is not the best, but I feel like this my be the only option, but I wanted to get other opinions. Also what size should the pipe be, 1.5" or 2". I can do either, but 1.5" is a smaller hole to put in the joist that already has a big hole through it. There is also an overall picture, (pic 3 ) that shows everything. Thanks for any help, and this site has helped me so much on this bath remodel.