I tried a little experiment yesterday.. not long, maybe for about 10 minutes so it's not very scientific...
I, too, shut down everything (except anti-virus, I am not THAT brave) and started a round of golf. I had my toon just stand over the ball until my dirty rotten stinking annoyingas all get out, muck-handed, filthy blankety blanky $%^&'er friend bell went off, then I tried to take a shot.
On average, 65% of my swings had a jumpy swing meter immediately after the bell.
20% of my swings without the bell jumped.
I don't know if it means anything, but as soon as they give me the option to turn that thing off, I will.