As rob says , I also do not use a mono leader when fishing, just run the braid right through , for the same reason .
I use a bead above float then a small elastic band .
Pull one end through the other, around the line ,
Pull tight , then cut off most of the projecting loop.
Will slide up and down and does not come undone.
Works perfectly on braid.
I have never tried the power gum , are there any advantages?
Mike F