Okay, I've only been playing about five years and I played an 80 watt Peavey TKO combo the entire time. There was no "clip" or "overload" lights or anything like that. I played somebody else head & cab a couple of times and it had a "clip" light - one time it went fine, the other time I had the clip light coming on constantly - I really don't understand what that is. I always believed that I'd figure all that out when the time came - but I recently started playing a Trace Elliot head that has an "overload" light (I'm thinking that's the same as "clip"?) So . What is that? Is the fact that I have not seen the light come on no matter how I set the controls on the amp a good thing, or does it maybe indicate that the light doesn't work? Any info is appreciated.