I have a SUP, a longboard and a fish.
SUP is for when there are 0 waves and i just have to get wet. Never around other people in the surf and pointless even in small surf because the longboard will catch anything the SUP can.
LB is for small surf, which is usually relatively empty as well.
Fish is for fun waves and crowds. Not only is it safer because you can stay better in control of your board, but there is less mass and force to it and a smaller radius of board and leash if you do screw things up. And those are just some of the benefits for others, for myself, it's easier to drop in and duck diveable.
There really is no reason for an SUP in a crowded break: The SUP allows you to go farther to more remote, perhaps better, breaks without breaking a sweat. I use mine to go to offshore reefs while towing the fish, then anchor the SUP and surf with the other board.
And the most dangerous surfer out there? Usually the SUP'er with a helmet on. The minute the helmet goes on, the brain seems to get switched off. They feel safe, so act unsafely. Everyone else needs a helmet at that point.
Finally, there is the issue of wave hogs: Longboards and SUPs are especially guilty of this: Take a wave, ride it in, paddle back out, snake everyone and take the very next wave. WTF?
This happened to me yesterday. The break was crowded, but a nice rotation was happening. Three LBers come in, park themselves outside and trade every single set wave! Guy up front (half joking to not be a jerk) yells "Dude let me get one!" and the guy simply says "No". WTF? He thought he was funny?
I went from having a fun time to frustrated to irate. Considered simply dropping in on the dbag, then figured it wasn't worth a fin scar. I hate leaving the water angry. Glad I got that off my chest
