Fast change flat cure??

[fish_4_all]

Sorry for the title error, supposed to be float change, not flat.
Fast snap

I think I found the cure for my quick change dilemma for my floats. This seems to be extremely strong, more than enough to simply hold a float on and would allow for a very easy quick change of a float when conditions need it. I tried one and I pulled like mad, actually cutting the line into my fingers and it didn't fail or even open very far so it passed that test.

Is there any reason that I couldn't put one on my main line with a float stop? Anything that might cause it not to work right?