When we first contracted for our pool, it was an 11x25, and the PB said a SAl light would be enough because it was so small. Now, we have changed to a 15x32, and I think maybe we should upgrade to a SAm? Someone has said the holes in the pool are a problem with fiberglass and one PB said he does not install lights in fg pools for that reason (we did NOT hire him, too many other questionable items about him....another story). Anyway, should we ask to upgrade to a sam since they are only about $94 difference in all the supply places I see on the internet, or will the sal light be enough? Thanks for any input.