OK then....
I have not seen the 3/4" check valves, only 1 and 1 1/8. Can i assume the 1" will work onto the vent line of the 2012 mojo rear bags? Derek, is this why you referenced your use of the hair dryer to assist in the fitment? If not, let me know if you have been able to source the 3/4 valves.

Also, i did some checking and realized i may have less stock ballast than i thought. GIII in 2012 was only 1250 which would make the rears 400 a piece ( thought they were 625 ea). Good news is i can daisy chain them for the bow. Other than a short hose, will i need more fittings or will the 1100's have the fittings i need? i plan to use the bottom fill ports for connecting them, so thats two 1" quick connects and cap the others as fill/drain ports....