OK, I'm looking forward to hearing for you. I'm really curious whether it affects your profits....
Anyway, you're using Pro now: How do you perform with Pro? Are you filled in half of the spike, or earlier/later?
Where you get filled (with respect to the spike) is at least as much dependent on your broker as the speed of your clicks. A bad broker will NEVER give you a good fill. A quicker click may get you a little better position in the order line...hence better fill. That has yet to be proven...