That older JALB starter really doesn't spin the engine fast enough during the start even if it's in good shape. And if the O-ring slips, which is very common with that system, it's even worse. This results in overtemping the turbine wheel during the fuel ramp. Since my 1000 has an airstart line, I've dug out my air bottles and I'm using air during the start. A little more trouble maybe, but a lot easier on the engine.

I'd like to say that the new starter spins it better, but the engine I had converted to an "X" blew up after 10 runs. I haven't gotten it running since so I have very little experience with it.