Are there any pieces and parts you love from one test kit, but arent thrilled with it overall? I for one love RedSea's titration test holder. But, i hate the rest of the kit. Way more complicated than it could be. But, i love salifert's cal/mag/alk kits, but the vials are cheapo plastic and i need both hands to test. So i refilled my redsea kit with salifert stuff and love it. Easy one handed quick accurate tests! I know this isnt feasable with most kits because the color charts are made for the specific vials in the kits, but what are your favorites? What are you doing for testing, do you have a favorite mashup? What parts would you keep or wish another kit would do?