Currently, my favorite moisture control system is the new Gibson Universal Moisture Control System. This product is installed at the bottom of the blow stick stock. The canister has a rolled up shammy inside that does the job like no other. I can literally get 4 hours of playing out of this product before I have to change the shammy. As I play a lot, I make it a habit to change the shammy once per week. At that time, I put the whole thing in a bleach bath to clean it up and insert the spare shammy into it while the first one dries for next week’s installation. Thank you, Jerry Gibson. He has produced an excellent product!