So I've been obsessing about my next PAM purchase and thought I had decided on the PAM 233, that is, until I saw the PAM 311. I have searched the past forum discussions and don't see any comparisons have been made. I'd really appreciate feedback on pros/cons, as well as likes/dislikes about these two models. I realize the PAM 311 has some additional complications and a slightly busier dial, but IMHO they are quite similar in many ways, and are not priced too far apart. Let me now your thoughts on which you'd buy and why.