[Jeff Lee]

I've had them made by JE, CP and now I just had a set made by Diamond. Of all the pistons I've had made, Diamond by far was best. I, or my machine shop, has had issues with both J&E & CP. I'm talking expediancy, cost, problems in not following instructions, all this goes into my opinion of how I was handled as a customer. I'm not slamming them because these wern't "end of the world" problems, but so far Damond is the only one that gets a "Diamond" rating from me.
I've also heard good word lately about Weisco.
I've always had the manufacturer send the piston in for approval as opposed to what Tom Goldman did. Not sure if that helps from loosing parts or not.
I believe NHRA.com has a contingency sponsor list on-line.