James.. sounds like you need to increase the frequency of the de/re`s as the adhesive is breaking down `early` due to the active lifestyle, and you could also try a different glue and see how that `behaves`under those conditions....once they deteriorate like that, it can be a real chore at clean-up time, so a bit of `prevention being better than cure` might be worth it.
As you are using knot-sealer [you can re-apply it monthly] it forms an acrylic `skin` on the lace, so there`s no real chance of you pulling hairs through at all....alcohols do/will dry the hair, but the most accurate way to apply lace-release is to fill a plastic syringe with it and then you can aim it in close /onto the lace whilst avoiding most of the hair......once it`s off the head, you can use one of those little atomiser/spray bottles to spray Glue -melter onto the residue on the lace, and allow it time to attack /weaken it....then wipe it off.....bubble wrap is pretty good and disposable....saves having to clean a mirror too ! Alcohols evaporate, unlike solvents such as C-22, so no need for deep-shampooing to get it out of the lace. The fact that you are sweating profusely/frequently means you should aim for a more frequent de/re so you can give the lace a bit of a shampooing to freshen /cleanse sweat -residues [acids] which inevitably weaken any base-material.....even poly will eventually get little holes or small tears in it from sweat...... I often just grabbed the hair in a bunch, and dunked just the base into water [to which shampoo has been mixed] and just rubbed the lace with my other hand...rinsed it out under running water---- the hair itself isn`t `dirty`as such...it`s the lace which picks up the sweat and scalp oils and microscopic bits of skin we all shed daily....frequent shampooing will also lift the hair -colour as you know. Hope that helps.