CS 4-Max, AD-10, AD-15 and an early full Ti custom AD-15 The CS AD-10 and AD-15 are extremely well made. I'd say 95% of the fit and finish of the 4-Max which of course costs twice as much. The action on the custom is much smoother than the CS AD-15 but the CS version will smooth up over time. I'm very impressed. So much so that I'll be selling the custom to add some funds to my retirement account.