I switched to 2.4 in late 2006, since that time I have run the throttle servos in all my gassers within 3" of the ignition modules with no issues and one of them has over 500 flights now. In fact, when I completed my 40% Carden 260, I ran two 2100 ma lipos into a Fromco two batteries in switch with three outputs and connected the two receivers and the ignition on the same switch. I flew that way for over 300 flights when I finally changed to a single power safe receiver and went with 7.4 V direct. 2.4 is a long ways from 72 and I always use a DA ignition module. In general, if you perform a good multi power setting rang check on the ground and all is working, then it is going to work in flight. It is that simple.

By the way, In the gas world, your best application for linkage is to use ball links on the carb and servo and a Pro link or a 4-40 all thread for the rod. just saying...

Bob