I have wondered the same thing. I would avoid a pocket board without tracks unless it's brand matched with the foil or you can try beforehand. You might find someone on the big forum who has actually tried. Otherwise I can vouch for the tray 94, I've heavily used mine. My only complaint is that it's too nuggety and the excess width catches sometimes when you're fully keeled over in swell. However the latest v3 has slimmed it down a little (460 from 480) so it should be perfect now.