i think itll work just fine rc,the tap is close enough to the top that i think itll be ok!!, if not im screwed too because im ordering the same pipe for my 100 to go on my ucd and if it dont work i can always tap my crankcase, you just have to use a "T" fitting and put the check valve just on the other side of the "T" (straight across) and then have a open line to the atmosphere on the bottom of the "T" out the bottom just like a normal vent!this will create enough pressure to operate the cline and still allow flow for the oil to get to the bottom end
Bunnman, i kinda like that mount, gives me something to think about

about how far off is the tank centerline from the from the spraybar?