In reference to the data from Boo Weekly , when you are launching a driver at 9 degrees 2500 spin is too low , if he was launching it at a higher launch with that spin, example 11 degrees and the same spin would be perfect, however as he is a down striker of 3 degrees he tends to create less launch so the extra spin actually helps create a little more carry
I am a trackman owner and use it for fitting every day and coaching and see the same problems every day , people think low spin = more distance and that's only the case when launching higher
Hope that's helps