[NO NO NO E-Z-GO!]

I pose a conundrum to you all, a riddle if you will.

OK, The proper drive belt size for my cart is 1" wide by 37 3/8" inches long. Now, my question (I'm just looking for thoughts and input now so I can weigh each side) is this: Why couldn't I use a slightly wider belt (helps performance) and one about 1" longer (it's a hair too tight now)?

Here are a few specs of other belts:
Club Car 1984-87 -- 15/16 x 37 1/4 (probably too narrow)
Club Car 1988-91 -- 1 x 37 1/2 (it has all of 1/8" more length)
Yamaha G-2-UP -- 1 3/16 x 39 (possibly too wide, but length is good)

Ideas? Thoughts? Comments? NO BS!