My two cents worth for what it is or isn't worth.
I have had several different boards over the years both with and without vents.
My original board (eight years old) is a Southpoint Kalama model. No vent at all, no structural damage and no explosions, used and abused by all and sundry to this day.
My SurfSUP is a 9'6" Fanatic Allwave, 18 months old, no vent at all, no structural damage or explosions. extensively used but also cared for.
My tourer is a 2014 Naish Glide with a stainless steel vent screw. I never touch it. The board is used extensuively but very well cared for as I am not wealthy.
Boards that I have had in the past (2) both with plastic and steel vent screws I have had no issue with and also have never touched the vent screws. I don't know if this is the right thing or not but was advised (by dealer) to keep them out of the direct sun for long periods and if I did this there would be no need to ever touch the vent screw.
Who knows what is right?








I just paddle them and love it.




Enjoy.
ET.