It’s a great OF Jeff. You’ll be happy with it. And as JMM said, it’s dead quiet. Another suggestion I’ll give you is to buy the economy gate valve from BRS. I have the expensive Spears on the Synergy OF. I put the economy gate valve in the 40B and the economy valve allows more precise micro adjustments. The Spears, although sturdier, sticks and can be a pain to get adjusted correctly.