yes i agree in theory it should gain something and thats the very reason i did it.Interesting; according to the gear ratios at 7120 rpm in 3rd the car would be pulling 102 mph.
Anyway; the whole purpose of the post was to share some theoretical info that may in the real world deliver a small advantage on acceleration tests.
My car makes peak power around 6730 according to my last RR, so I may give this a try at some stage.