Not sure if this has been covered before but can anyone tell me (in layman's terms) what attributes/difference in performance the various tail shapes of surf SUPs (in particular for vanguard style boards) offer e.g.

- round (typically found on non-vanguard style SUPs)
- pin (e.g. Sunova Speeed) more sensitive & helps generate speed?
- square (e.g. Gambler) to pick-up the wave early & offer additional stability?
- fish/swallow/fang (e.g. Minion/Slate/Vbox) to give the board more drive & easier rail-to-rail transition?

Thanks