I have to agree with some of the above. Doing your CPL on a twin will be of no benefit in the long run. Things happen very quickly on the twin if you are not used to it so things like navigation and diversions are made slightly more difficult.
Think of the cost as well, which has already been mentioned, if you partial your test, or even fail it then an expensive day out turns into a very expensive day out. Ok if you have cash to burn of course.
I would hazzard a guess that most people want to do a multi CPL for the extra twin time, well to be honest an extra few hrs in a twin is not going to impress anyone who receives your CV. what's the difference between 40hrs on the twin and 45hrs? Absolutely nothing. Save your money and do it on a single.
D777