I don't know how much installed preload exists. The guy I bought the shock from, said he installed the 105 spring because he is 83 kg and he did not like the default one (95). I also have the 95 spring.
I guess they did not re positioned the collar, I will ask to be sure.
My measurements are as follows:
R1: 591mm (wheel is hanging in the air)
R2: 580mm (motorcycle is on her own weight)
R3: 571mm (me on the motorcycle, without riding gear)
*the fuel tank was not fully loaded, around 8-9 liters of fuel in it.
So my rider sag is 20mm, with hydraulic preload adjuster fully open.
My lap pace is 3 seconds slower from the fastest guy in my class. I am racing in F1000 (rookies). The fastest SBK guy is really fast, but he is a professional, 8 seconds faster than me. The rest of the SBK guys, that are not pros, are 4-5 seconds faster than me.