Exactly. And yours isn't the only example. Lots of people used to not preheat and their engines still ran great and lasted long. Now people have these ideas in their heads - wrist pin this, sleeve expansion that - and are convinced that spending a bunch of money and time preheating makes a difference.., just because it seems like it should.

To be fair I do buy into it and try to preheat during break-in, but I don't only run at tracks with electricity, so it's a PIA to do it every time. So I do it when I can. And honestly I'm not even sure it's worth it. I just do it to hedge by bets. But my bet is pretty much that it makes no damn difference..