[stormy]

I mean, you're trying to work all this out theoretically and conceptually, I'm just talking from experience. Triple buffering causes lag between a users input and what they see on screen. I know it's not exactly a 'credential' and may be a bit cringe but I used to be a 'pro gamer' and not just in any old game, Quake, the highest 'twitch/reaction' type game ever in esports. So I know my lag, I have thousands of hours invested in testing.

Zero lag: double buffered & no vsync
Low lag: double buffered & vsync (lag only occurs when the FPS cannot keep up with the monitor refresh)
high lag: triple buffered & vsync (consistant in it's response time due to the extra buffer involved)

Anyway this is all besides the point. All I wanted was to work out how to disable vsync in Solaris 10 ;D