I bought both at the same time since I did not know exactly which one I would need and perhaps I might string more than one type of frames. I found that strangely enough I was misweaving quite a bit using the tool. All you have to do is watch the first and the last mains and the tool takes care of the rest, but I was for some reason messing it up, whereas I never misweave when I do it without the tool. Not only that, the comb was too long and was useless for the last 4-5 crosses. I know I could take care of this by sawing off the ends but I have not gotten around to it. I tell you what, though: The tool is great if you have to deal with cheap and fragile guts like Global Gut. But since I do not use those anymore, I haven't had a need for it.