I.d.k i sold my legacy controller. I use to program rapid fire chips using open source internet codes and one of the most popular open source codes is hazers rapidfire rf. Its a acid modz open source hex and it has 160 diff speed settings and i have a chart that shows specific game speeds were it caps out at. on this particular game that chip could run at 8.33sps after that the speeds were too quick and would not work right. I'm just basing these speeds around that 8.33 mark. I know the legacy controllers can only go up in increments of .20 sps so i figured 8.20 and maybe 8.40 would work fine. but also might try starting low at like 6.00 sps and work your way up till u find the fastest speed possible. I don't know what they have their default speed set to u will just have to go trial by error and put the time in to find the speed that works the best for u. There are variables too i think if you roll a silencer that the rate of fire might be able to be tweaked a little faster as well. U will just need to play with the sps and when u find the best speed please post it to the forums so that u can help others out who are having the same issue.