I always appreciate your videos, however I feel to discourage using starting knots since they destroy grommets. The knot stabilizes instantly and perfectly on the grommet only when it receive the tension instantly, on clamp release.
My first attempt at tying Wilson pro tie off knots was sloppy, instead of pulling up I pulled down , leaving a larger, open knot. Should I restring and tie the knots again as Parnell knots? Or wait until the next restring ?