Thanks for all the great advice I received in prior posts. I decided to forgo the Vortech tank and go with a 5600SXT in 64K with regular resin tank. Will be ordering the unit Monday from one of two online dealers. Just need some advice on resin upgrades. Someone in the household has stated that they don't want no #### Chinese crap in there. In the interest of maintaining household harmony, I'll spend the extra $ for a resin upgrade, even though I really wouldn't need it. One online company offers Resin-Tech CGS-BL as an upgrade. The other company offers Resin-Tech CG8-BL as an upgrade. Both upgrades are $40. Based on the spec sheets, CGS-BL is a USA made high capacity resin, while CG8-BL is a USA made premium grade, high capacity resin. For the same cost, CG8-BL appears to be a better deal, as it's the premium grade. Just wanted to check and make sure that these Resin-Tech resins aren't junk or anything, or that the high capacity one is actually better than the premium one. Any advice would be greatly appreciated.