Hi Ian
Funny to read this as I have just had my HW95 tuned by Rat Works, and I can say with confidence that they do a great job,
Not cheep but very good and turned around in 2 weeks.
I had the Advanced Tune. And you get a full report from them.
PowerTest
Pellet Type JSB
Pellet Weight 8.4
Avg FPS 782.64
FPS spread 6.89
Avg FT/LBS 11.4
Hope this helps (only my opinion)
Dave.