I just bought a vintage Gretsch round badge snare drum made in the mid 60's. It has the original renown 4 point strainer on it. I am not used to this type at all and was wondering if there is some trick to getting it to cleanly throw off when I'm switching to the batter? Right now, I need to unravel the tension in order to get the batter to sound clean, which is annoying. Is this why Gretsch made the micro sensitive strainer? To fix this defect? Also, what do the 4 points refer to? I feel like I should know this, having been a professional drummer for the past 15 years, but I'm just not much of a gear head. thanks!