Not really. But I do find the vent hole in my boards really annoying unless I ignore it completely.
In the past I have always just tightened it up and never bothered to vent the board (off the water).
But recently, I managed to destroy my wave board and someone said that was because I hadn't been loosening the vent plug out of the water.
Anyway, I am still reluctant to vent - after all, putting your board out on the hot sand while on the car or rigging, then screwing up the vent plug, then dunking it in the (cold) ocean is a recipe for maximum stress on the board IMHO (and on me). Also doesn't help your first run when you remember you forgot to do it up!
Better to screw the vent plug up tight while the board is cool, not bother with it, and then try and keep it out of the sun? Less stress all around?
Any compelling alternatives to the above logic?
I can be pretty forgetful at the best of times: keys, phone, wallet. Hell I sometimes forget to do up the clasp on my helmet when I go out on the water. 
Rememebering to screw up my vent plug is just a dissaster waiting to happen. I keep em out of the sun and the my van when not being used. So far so good.
the vent plug is more about avoiding board explosions due to the extreme in car temps of summer (up to 80 deg C) and for air travel. these are the main ones that delam boards completely and quickly.
long term use of vent plugs will extend the life of you board. it will see less pressure cycles which is only a good thing :)
what happened to your board?? how was it destroyed??
It was a 2001 JP wood sandwich which I bought second hand in about 2004.
Last summer my jumps were getting more reckless/bigger - resulting in the odd major belly flop.
Delaminated a large sheet off the bottom, backwards from the hinge which must have developed in the middle of the board. (While sailing along, was surprised to see polystyrene trailing behind after a major ripping sound!)
Probably at the end of its working life I guess.
I always have it undone except for about 3 months in winter.
Make sure the straps are dry ish before putting in bag, and leave bag open a bit.
Many ppl (sorry, people 
) say they have always left it done up and never had a delam. Good luck to them.
BUT I have also seen board where the paint has bubbled due to pressure in the board making water vapour get under the paint. It looks really bad and devalues the board.
seems most early jp waves were fragile up to, and including, the barbed wire graphics model, and after that things seemed to have improved noticeably strength wise
i thought some 01s were weak and were replaced with 02s under warranty. but i could be wrong.
took me 25mins to search through my pile of boards there to find that one and my ladder
i don't know much, i've just been reading too much pommy forums
#8730;ent doesnt bother me when i sail with a cracked rail, a smashed crab for a nose and water coming out from under the pads... there is no such thing as a water tight board.. let the board breath!
Yeah yeah sbc, its the plug that's annoying, not the vent.
You are hereby appointed keeper of the vent terminology.
i keep my plud done up .. cant be bother playing with it ... but how much could the board posibly expand .. some one nees to measure how much air is sucked in under extreme temps .. say 50 degrees .. i reckon it would be so lil .. and some one mentioned a long time ago in a thread .. thier like 0.6% water in 10l of air .. so it cnt posibly suck enough water to make anny diference
master board maker bj insists on ALWAYS opening the vent ...
something to do with the foam beads always expanding and contracting whilst the vent is done up; eventually loosing their molecular structure thingo errr and the board wont last as long.....
course if you've got loads of coin, don't worry about it, but if you're strapped, u might be able to eeek another season out the ol dog.
Easty I meant a normal summer day as opposed to the board in the car hahaha
Hey glad you quoted me it made me notice the typo..... last bit should be done up NOT undone 
Yer right Mark_Oz - my board 'delaminated' one layer of foam beads back. Often got left inside the car....
I'm thinking I'm going to vent the board on the longer trips and when its stuck on/in the car.
Still, headed off into the surf on my SUP this morning with the vent plug undone.
I need a fail safe system for remembering to do it up - maybe velcro a screwdriver to the back of my helmet (which always goes on)?
