Whats a fast sail & how fast do they go?

We pretty much know that the race sails are the fastest but what about those other ones that we also use?

2, 1 and no cam sails? What can they do? What have they done?

How fast have you gone on what sail and what size?

Feel free to add board & wind strength.

Me, 29knts NP Ryde 6.5 JP SS124 145x73 JP SS40 fin (yep too big)

This can assist when we are looking for new gear that is fast but not as full on as the race kit.