Apr do seem to be doing really well lately. The times people are getting on 1/4 mile is proving that.Rolling roads are a real lottery.
Whilst it's not accurate,the "bum" dyno tells a lot about the way a car is performing,and whether or not something has made a difference.
I have no doubt that the current revision APR maps are offering increased power and torque over some of the maps available,but you also have to remember that even if one map turns out 400bhp at peak rpm,compared to another that "only" produces 360bhp,that this amounts to around 10% at peak rpm.
Torque is far more important in the mid range,and again,APRs maps seem to do well here,likely down to their timing strategies.
I know they were VERY interested in Revos timing settings a few years ago.
But then you have custom map. And alot of people seem to be loving them as well lately. Especially Ricks (Unicorn motorsport) and R techs custom maps