I recently decided to flush and bleed brakes and clutch on my level 3. Had 10,000 miles and was just over 2 years old. Purchased a MityVac to help me do the job by myself. The mityvac worked somewhat but started leaking air around the hose connections and would not hold a vacuum more than a few seconds. Soon as I fabricated a hose clamp to fix one air leak, another would surface. It soon became frustrating. I decided to order some "speedbleeders" that I had read about on the forum. I installed them, including one for the clutch, and they worked beautifully. No mess, no fuss and a one man job. The brakes and the clutch are firmer and work better now than they ever did, even when brand new. Can't say enough about them.