There are lots of times in this forum we talk about wrapping handes with something, or wrapping splinters, etc.
I like nylon seine twine or mason line. When i wrap with it i run off a section long enough to do the job. Then I make the spool end fast to something solid, like a post in my carport. Starting at the working end I overlap the first two or three wraps on the bow and then back off till the line is TIGHT, like TWANG-Y tight, and begin rolling the bow in my hands, turning it under great tension, till it is filled in as far as I want to go, MINUS ABOUT THREE WRAPS . Those three wraps are done with half-hitches, the end clipped 1/4" long or so, melted with a lighter and finger-tapped down, so it never will un-tie.
Done this way, there is no danger of it ever getting loose. Further, it is easy to stay accurate and is easier on the hands than handling cord, and pulling it tight with the fingers.
piper