Dkr Tune To Cure Throttle Snatch

Hi Guys
Has anyone tried DKR tuning in the US. They say they can send you a tune to put on your speedy 1200 that can cure the snatchyness and improve torque etc. Has anyone done this?
I'm fed up with the throttle snatch at slow speed. Have tried the rain mode but didn't improve it. I had an America and fitted the booster plug (helped a bit but not perfect) Any advice would be greatly appreciated. I love my Speedy but this just takes the edge off an otherwise perfect bike for me.

 

DNK