ORIGINAL: blw
I'm not disputing the problems here. I've had a TPS .455 and the .46NT engines set up without much padding as if asking for bubbles. One plane had no padding. I didn't have any problems.
Yes, once in a while you get lucky and the fuel tank doesn't bubble. That makes it super hard to convince newbies that hard fuel tank mounting is wrong. But I don't argue with what works - for the moment.
Ed Cregger