I have always used Tulsion MB115 the reason for this and the same for the most of you i listened to others in the past and they always rated it the best . I was wondering is the other stuff that bad i dont know the technical details if it is that bad why have they done nothing about it ?. I have also noticed that a lot of times the other resin is cheaper so if it was cheaper and you got less water but would they be any advantage buying the more expensive stuff more money more water what is best ?