Ohlins TTX tech point

In talking with The M4 techs I noticed they were using a precision tool for measuring TTX shocks that were sitting off the bike on the work tables. In watching what was happening they were measuring all shocks for overall length before they were put into the tool box to go to the pit wall. The reason for measuring each shock is to ensure they have exactly the same length making sure that the rear geometry of the bike is a constant for each rider. Why? The TTX shock has a top out spring in it that will depending on installed preload, allow you to lift the tail of the bike up 15mm or so until the shock is truly topped out. So, every spring must be installed with exactly the same amount of preload (ie: 12 to 15mm shorter than if it was sitting on the bench) so that when a rider tests the shock spring for edge grip under hard acceleration there are no variables that creep into the equation to give a false read. Details, details, details.....................