Why not?
 

Why dont cats use a front tunnel tab? Wouldnt it give lift or down pressure? No ballest tank,no tabs and posably more speed? I must be missing something.
MD

Mystic does i think. I believe its a static set piece though. Can be adjusted and locked, not adjusted on the fly so to speak.

Also Coplands Phenom had a wing thing up there but also had no deck directly behind it. I believe that one cound be adjusted on the fly.

I think properly set up cats would not need it though. Throttle guys got enough to do without yet another thingy to mess with :D

Didn't Dave Scott and the Nauti Marine crew experiment with something similar to this on one of their boats not too long ago?

I believe they had more of a canard (sp) so to speak, but the same basic principal.

Buck