Running a Spektrum DX7 in three gasers with absolutely NO problems at all. One is a G26 in a Giant Spacewalker, another in a GP SuperSportster 40 with a gas/spark converted SuperTigre G51, and finally a Big Stick 60 with a Saito 91 also converted to gas/spark. All of my planes use the original CH ignition with built in synchro-spark and I haven't had any problems. Been using it for about a year now and I have it in a total of 7 planes and 2 heli's.

The SuperSportster is the tightest fit and the ignition module is sitting within 1" of the main receiver (no other way to get it all in) and the two batteries are stacked on top of each other just aft of the wing for balance. None of the three have the ignition module any farther than 2 1/2" from the main receiver and all of them have the batteries mounted either on top of each other or side by side in the case of the SpaceWalker. Again, not a single hickup out of any of them and the SuperSportster has more than 35 hrs since it was converted to spark. I agree with Terry (tkg), it may not cure a poor installation but I sure as heck wouldn't call any of my installations good and yet it just works and works and works . I also have a Futaba 7C FAAST system that I have been testing and it seems rock solid as well. (Won it in a raffle at a fly-in)