I totally get what you are saying it’s the most ideal way it’s getting it tied into the main horizontal where everything seems to be meeting, in IPC anytime a kitchen or washer enter what a drain line carries, then any bathroom group fixture that joins it must already have been vented so I have to keep it separate until everything is technically vented. So to try and give it a shot, because I believe in my set up I would have to come by with the kitchen line past my left lav past wc and past the dry vent for wc then I believe I could tie it in because everything after that the right lav, tub, and shower are all vented already on the small horizontal coming in which only leaves the wc on end that dumps into top of stack, so to my thinking I have to tie kitchen washer line in between the left wc and where my other vtr horizontal comes in, assuming the wc that dumps into top of stack is vented so to make a little room basically I am going to take the left lav which comes in upstream, use it as a wet vent for the left wc, take the dry vent out which will free up a little room and hook kitchen line in.? Problem one is right wc is technically unvented then I think, but problem two came today when I realized I can’t get the tub hooked on to the 3”vtr horizontal becss as use it’s pushed pretty tight against the right joist that I can’t get a wye on without drilling 3” hole in joist and half the wye side branch would end up in the middle of joist for my connection. Guess I am thinking that I could just run tub line down to main horizontal and use it to wet vent right wc. Unless I am not seeing somewhere that the right wc would already be vented somehow already, either way tub has to come all the way down and get back vented I guess because it just ain’t fittin.