I'm new to the 7 string world after 21 years on 6 strings. The guitar I have came with 58-10s. Pretty floppy for the brutal riffage I want to unleash. But it seems like most commonly available sets are light like this (I'm in Boulder/Denver). Might need to venture online for strings. So I'm curious who prefers light, who prefers skinny top/heavy bottom, who prefers something heavier like 64-13s, and would love to hear some reasoning behind your preferences!