When I bought my first engine about 12 years ago. an Enya .46 MKII fourstroke, I got the test stand before the engine. I commited two cardinal sins when I bought that engine, it was my first engine and was a fourstroke and I put it on a Kombat 40 Trainer from the Airplane Factory with the 60 inch wing, I found out years later that plane was way too heavy for that engine, somebody forgot to tell the engine. It flew it just fine. I have two J-tec stands and a new PSP, I wouldn't set an engine up with out one. By the way Sprink, I'm not one of guys you upset if you're thinking I was.