For Giro Flint SC wearers ...
.... tired of your visor working itself loose and not staying down when skiing??
Thanks to Mr. Altagirl's ingenious mind, problem solved. I was thinking of getting a mini-snowboard binding clip and attaching one end to my helmet and one end to my visor. Then if you wanted to raise it up just "un-click" it and then to lower just "click" it down. Mr. AG suggested why not use velcro?? I thought, hmmmm. Put said velcro on last night at very back end of visor in the middle (where the visor "fingers" out), cut to shape and I'll be damned if didn't work and you can't even tell its on there even on close inspection.
Schaweeeeeeeeeeeeeeeeeeeet!! No more visor popping up at high speeds!!! :)
Note: could also eliminate by carrying allen wrench around with you all day and tightening as needed (but it still could pop up at random). Nothing like a mini-sail popping up to wafe your head around. :D