Ummm, A kimbrough ??
You might be able to get it to work but you'll have to trim a lot off because it's a BIG saver.
I have one of these in each of my 2 LST2's with no servo saver;
http://www.hitecrcd.com/servos/show?name=HSR-5990TG
I broke several of the Dynamite aluminum servo hrons but have switched to the hard anodized Losi horns and there much stronger.