I'd like to tighten up the pattern a little with my SBE II, 28" barrel. Been shooting hevi shot 3.5" mag blends and saw a huge improvement when I switched to 3" mag blends. Pattern looks nice and even with the IC .665, just wondering if it would be worth it to try a jh .660. I also just ordered a couple boxes of hevi 6"s in 3" hoping to get some warmer weather here to try them out. Thanks