Siemans makes a 100 amp panel loadcenter that is designed for a main I believe, with insulated ground/neutral bars on both sides. I'm wondering if it is legal to convert it to a sub. I'm wondering if you can put the feeder ground on the side with the bonding screw tighten it, remove the jumper bar and put a lug on the opposite bar and put the neutral on it to seperate the two. Theoretically it should work, was just curious to if it was legal or not without having to add a seperate ground bar attached directly to the panel frame