Floats in braid or even very thin, light monos can be the pits. The double string knot steps up to the braid dilemma but I use a lot of small static floats with real light line. Here’s a couple of thill mini-stealths that I use many of and with light lines [and yes I’ve tried this with braids] and how I’ve addressed the slippage issue. These small floats come with one of the latex tubes to secure the line to the float. I use two of the latex tubes.
The line going away from the top of the float is going to the rod. You can see how the float is rigged thru the small hole in the stem from the lure, then the latex tubes are simply pushed on over the stem and line. The second tube on the right side float is strung and ready to be slipped on the stem. While the line I used here was primarily for visibility so you can see how they’re rigged, I have tried these exact floats with the 4 pound Clam Ice Braid that’s hair thin and the dual tubing works with it as small as it is. I’m almost certain that two string stops tied on the thin line will wok if this does for a static float.
Someone asked earlier what wetting the strings did…..the wet string tightens tighter because the water reduces the friction that would hinder the strings from drawing tight.