I have bought the blue lace from Debbie multiple times, I had also bought a "blue liner" from hair direct once, they dont seem to carry it right now, as far as I understand it is the same thing, I certianly could not tell much of a difference, I assume they are from different companies.. I have used supertape, proflex, walker no shine, blue lace, and blue lace with red liner to ease cleanup. The strongest hold for me was probably blue lace, it is different for everybody, but I tend to be pretty active and tend to sweat alot. The problem I had with blue lace was the cleanup was messy, so now I've been using supertape with scalp protect from Debbie and I've been having good results, without the scalp protecter I dont have much luck with supertape.. I also would be interested to hear anyone else's advice on what tends to be strongest and water proof..