For you filter sock users: 1) what brand/model would you recommend for durability and ease of use, material? I want something that will easily be thrown into the washing machine and won't fall apart after 10 washes. 2) is there a obviously noticeable difference in clarity with 100 vs 200 micron socks? I"m thinking 100 microns won't plug up as fast and I'm looking for efficiency but also low maintenance where possible 3) Rings easier to hang and change than draw strings? Was thinking of making a DIY acrylic sock support. 4) how do they measure when 'wet'? a 7 x 12 inch filter sock will not be 12 inches tall when wet will it? Or are those measurement accurate in-tank? Thanks