All measurements are
here for Origin 106 in both 182 and 187, Nordica Enforcer (22-23 and 19-20, not quite yours) and Pinnacle 95 Ti 18-19.
To assess how long a ski will feel, I typically look at a few things (and I don't quite have the same numbers as you... rocker length seems to be reversed between the E100 and O106):
- True measured length: all close within 1 cm of quoted spec.
- Running length (how much ski touches the snow when laying flat). The liberty Origin 106 is around 58% of full length. The Enforcer 100 22-23 is at 73% (about 20-25 cm longer). The O106 182 is 6 cm shorter in running length than the 187 (RL doesn't always scale with quoted length).
- Sidecut length (if you edge the ski, this is how much of it could potentially touch the snow depending on how fast/much the tip/tail raises and widen). All skis are comparable at around 153 cm due to the long "early rise" of the Origin 106.
- You can also look at tip/tail rocker lengths and tip/tail taper lengths, but these are related to running length and sidecut length.
- Mass: The E100 is about 300-400 g heavier than the O106 and P95. The O106 will be easier to maneuver.
- Stiffness: The E100, specially the 22-23, is stiffer in both torsion and flexion by a fair bit (20-40%) than the O106. Both O106 are about the same. The P95 is close to the 22-23 Enforcer.
- The E100 has 9mm of camber instead of 4 mm for all other skis. More stiffness, more camber and more running length will make the E100 more stable/engaged with the snow (feel longer).
One thing to note between all these skis is their different sidecut radius: E100 at 18, Pinnacle at 16, O106 182 at 20 and O106 187 at 22 m.
Pretty much everything points out in the direction that the O106 will be easier to maneuver than the E100 (except maybe sidecut). I don't think I would scale down if you are comfortable with the E100 185.
Hope this help!