The learning curve for MDRS use is very shallow. If you have any experience working with brass instrument repair, you will pick it up very quickly. We do highly recommend working out the curve on a few junkers or stock instruments first. Or, if you live in California, Florida, Hawaii, etc., Wayne or Eric will come to your shop during the winter months in exchange for travel expenses, rental car (convertible), room and board, and $500 a day to personally train you and your staff.