Re: Changes to damping after changing fork springs ?
If they can modify the valves, that would greatly help the high speed damping in both directions.
The most important aspect after changing out the springs (and making certain the oil level is set correctly (I suggest around 100 to 110 mm below the top with Showa 5 weight suspension fluid) is to set the sag correctly (around 30 to 33 mm). Once you have done this you should adjust the damping to fit your riding and conditions. There isn't any magic setting for compression and rebound, but I would start at 1.5 turns out from full clockwise as a reference.