I use this for all my planes and haven't yet had a problem with them. They are better than Dubro's version IMHO.

http://www.horizonhobby.com/Products...ProdID=HAN3025



You might have to widen the ground soder plug or replace it with a larger one. The stock soder plug seems to be a bit small. I just pull the wire as you slide the boot on the glow plug, and take the ground soder plug and slide the allen exhaust bolt through it and tighten it down. Your using the engine as a ground, so you want it close to the glow plug. Making the amp travel at its minimum.


Pete