I started using skimmer socks about 2 years ago and will never be without them again. Don't know if I've ever used them with Mycelx but I do know you'll get that polished look in your water with any brand you use. Walmart sells some around here for about $8 for 5. Since pool stuff is seasonal in a lot of markets, keep an eye out for season-ending clearance prices this time ot year.

Hal