As I recall, when I looked at it, the pivot seemed to be central vertically and measured the same from all pivots as the std non-adjustable one....
If you want I'll try and get up in the loft tonight and re-check?
But when I fit it, it will be in conjunction with setting the sag, pre-load and getting the steering-head angle correct, so g8d only knows what the actual setting will be....
If all the above isn't done then all it is is a bit of pointless bling..........IMHO of course
Paul
15th year in DD #68 and getting slower by the year
1199, SS800 & 620SSie DD racer