Some shortcuts are way too expensive.

But I do understand the temptation.

I vaguely recall re using a head gasket once, don't remember why, but undoubtedly I forgot something. When I put it back on, I re-torqued with a little extra.

I got away with it, but it was by no means a performance motor, and it was my car so if it had failed only myself would be inconvenienced.