The Hydraulic Clutches in the '05 SEEG (bone stock, factory recommended amount of Formula+) and the '09 SERG (Alto Carbonite Plate Kit, AIM VP-95, SE Heavy Duty Spring, 1qt of Formula+ or Redline Primary Fluid) both have linear engagement centered in the lever travel, a motorcop would love it friction zone... Lever effort is the same at lower RPMs, effort increases on the '09 as RPMs climb and the AIM spools up...
The '05 has 62,xxx mi, the '09 59,xxx so far...
When upgrading the Charging System on the '05 (60k), discovered the Clutch Hub Splines degrading,,, no discernible symptoms,,, guess we caught it in time

replaced the Clutch Assembly...
Both Bikes have had the Clutch Hydraulic Fluid flushed & filled (at Dealer) as PM at least once...
'Had the opportunity to ride "Unbalanced" 131" '04 SEEG

(CVO Hyd Clutch, SE Billet Clutch Assembly), engagement was smooth & linear, great friction zone, at the end of lever travel, engaging "all the way out" took a little getting used to, as over the years I've always adjusted my (cable) Clutches to engage in the middle of lever travel. After I got used to it, no big deal, thinking about it,,, engagement at the last bit of travel can be advantageous (as long as no Slip is incurred), there is more lever travel applied to dis-engagement, less drag / clunking...
With Hydraulic Clutch Actuation, it is not necessary to have lever "freeplay" as with Cable Clutches,,, so as long as it's not slipping, engagement all the way out is fine with me.

'Thinking that stack heights / bearing depths come into play more than anything else...
fwiw, I recommend periodic Hydraulic Fluid replacement (25k-30k has worked for me) although it hasn't changed engagement, it makes me feel better
Ironhorse, Is your '06 Clutch stock?? How many miles?? Have you owned since new?? Any motorcop stuff??