What was involved in the throttle stop modification Steve. I'm intrigued.
Does it get rid of that second gear lag?
What do you mean by "second gear lag", Chris?
Bogging down when you change from 1st to 2nd?
I personally don't have any problem, if I rev it to just under 6k rpm in 1st, when you change to 2nd gear it'll drop straight into the beginning of its power band.
With regards to modifying the throttle stop, if you take your induction chamber off of your car and peer into the throttle body, you will see that the butterfly is not fully open when it hits the throttle stop.
By filing approximately 2mm off of either the aluminium throttle stop or the actuator cam (if that is what it's called, lol) itself, you can make the throttle open slightly more and hopefully increase air flow.