i dont love the bb3, it has a weird harsh thing to the mids that bug me. the low wind set is bright with strong attack. a2 neck, a5 bridge i believe. i prefer the normal lollar set wind, but i like a2 in both positions. my favorite lollar set ive tried is the normal neck with a high wind neck in the bridge. a buddy had that set in a custom made lp type guitar and it sounded great. i dont have imperials in any of my guitars, but i have a few seths and few antiquitys. i would think a seth set would suit you well