When I get towards the end of the serving, I backserve the last 10-12 wraps. About the only way to backserve this type of serving is to lay a loop over the serving before finishing that last 10 wraps, and then to pull the tag end through. I do use dental wax. It's thin, strong and slippery. If you backserve too long or too tightly, you can break the dental floss, so I usually double-up on it.

One tip on serving the loop - put more wraps in than you think you'll need. I always force a few more wraps into the space than it looks like it can take. Once you tighten the backserving, it tends to create some slack in the end of the loop. By forcing the extra wraps in, you prevent the possibility of the loop ends being large enough to slip over the tied nock points.

Sometimes it takes practicing a few of them to find out what you prefer in the way of length, thickness, string material and the amount of serving on the loop. I've made so many of them, I know what to expect if I use 12 strands of .018 serving or 8 strands of .026. Until you've tried a few different combinations, you won't know what you like best. The good thing - your options are numerous.