Thought about this some more. It's only a 3% increase if you compare (X,Y) coordinate versus (X,Y) coordinate, but that's not accurate -- you need to compare the area under each curve. So the total energy output over those 2ms is likely 10-15% higher than stock.It's an extra ~3% of output energy at the very top end of dwell, but you're seeing a fairly consistent energy increase throughout most of the curve. Not entirely sure if 3% is enough to truly be noticeable. Keeping my ears perked for reviews and such.
In any case, a set of APR coils cost roughly the same as a set of genuine R8 coils. So if the reliability is there, it's a no brainer to pay the same amount for something that outputs 3% more energy.
Been a long time since I've had to do real math