Must say I can only echo similar sentiments.
Picked up my 749R from JHP last week, after having the 57mm system installed and set up on the dyno, and the yoke offset changed to 27mm, along with the head-angle to 23.5 degrees, and I swear its a different bike (probably somebody elses!). Never have I had so much confidence in the front tire, and all the staff were great, particularly John Burrows and Rick Hackett.