Thanks to all for feedback/advice. I'm installing a toilet and sink/laundry on side of house just above main drain (3") which I tied into. There was a major tree root which prevented me from placing 3" wide sweep wye or tee in order to get a 13" off set for toilet hence my need to route the pipes over using a combination of 1/8th and 1/16th elbows to where toilet drain will be. Everything with blue tape on up is not glued yet. 1. There is at least 12" straight 3"pipe between the two 1/8th turns. Then there are two 1/16th turn elbows directly connecting to a 1/8th turn elbow to achieve a level top to meet with toilet. 2. Then, just ahead upstream from the 3" wide sweep tee is a 2" san tee angling up to other 2" san tee one side branching up to vent up side of house, the other branch to go to sink and laundry drain with addition vent at that location. Hope the text and pics are clear and make sense. Thanks for your help!