I know you suggest the k-2006 but i got a k-2005(high) off ebay for $1.25 so i had to pick it up. I had the hth 6way kit before buying this but used up my cya (2 tests) so i needed something for the rest of the season. 2 questions: does" high" mean the kit tests higher levels because it has dilution marks? And if i pick up a k-1515 will that be all i need? Thank you