Upper rim removal - 15g

[Aleks]

Brainstorming is getting the better of me, and I would like to know if anyone has a direct experience with what I want to do.....I want to remove the upper black trim on my 15g tank.....I've read on the web of it being done with 10g setups with no problem, and some larger ones with good success. The glass on my 15g is 3/16" thick, and I'm not sure how much pressure would actually be on the glass at the top, unlike the bottom. I know my old 45 would bow out a bit with the rim in place, but we're talking about 1/3 the water. The glass on my 10g is ~ 1/2 the thickness of the 15g.....

Thoughts?