Interesting tie but why would one want a mouse pattern to dive? Undoubtedly it will work, especially for bass, but it seems a bit contrary to the idea of the pattern, which is supposed to be a struggling, partially sunken mouse. If anything, inverting the fishlipps so it pushes more water but would not dive would make more sense to me. Not meant as a criticism, merely an observation. One of the charms of mouse patterns is to see the surface strike, after all.

Some mouse patterns use vernille or thin strips of leather for the tails, which might be more supple than parachute cord. YMMV.