No probs on the Stetsom questions. I couldn't help but be curious when I saw the outside and inside pics of those amps and then I saw the power ratings and I just wrote it off as overrated but now everyone is saying they are good to go, and then I thought, well they must thermal at least, because of the size of the heatsink, but you guys are saying they don't even thermal so I really need to get one of those and check it out. I can support a 3K in my test setup at my shop. I have a competitor that I sponsor that can put the 7kd to the test in his setup, I think we can even run it at 16V to see how it does.... I am still working on the funds to build my 2kA power supply of my own, so I won't have that kind of amperage to test with until I get it done. Would be glad to talk with your guys about repairs. After all I am in the repair business, as alot of the people here in this forum are my customers.... Have repaired a lot of amps for these guys, we do commercial work too so have your guys get in touch with us, we can talk about it.