Used Sticky Weight for a time, and played with Loon's product too, and if there are/were the best on the market, then I really do not have to try any of the others. Putty has its uses, I suppose, but I never liked the residue on the leader, and the imprecise means replicating the amount of weight. For example, how do you tell someone else how much weight you are using? How do you replicate how much you have on the next day after changing leaders? It does have its uses and there is an argument that putty does not hang up as much, which is certainly an advantage, but I have found it generally to be more effort than it is worth in most situations. YMMV.