Its my second big boss the first one had to be returned because the ram was out of alignment. Even the second one they sent was not as smooth. I should have listened to Solitary Man and DM and bought the Forster Co-AX. Anyhow I found the Rockchucker is much smoother but you know the story not many dealers carry Redding and if you depend on word of mouth(BIG MISTAKE) you may be sorry you bought something.