The problem is he’s not right. He’s wrong. When you calculate the dollar per horsepower is ridiculous. By the time you buy all the gaskets and do all the work you could by pistons with a 1/16-1/16-1/8 ring pack and pick up 25 horsepower.
I suppose if you are running Stock Eliminator and you are trying to set a National Record you might give it a shot.
Of course, in Stock Eliminator you have to run OE dimension ring grooves, but you can buy spacers and run a nice, thin ring pack and make more horsepower.
What UT is doing is keeping alive the old myth that there is enough power doing it to justify it. IMO there are a dozen better ways to spend time and money. Even back then when those books were written. It’s not like you couldn’t buy a piston.
Has nothing to do with liking UT or not liking the guy. I don’t know him. It has to do with perpetuating silly crap.