Originally Posted by
Skulking
If the fork isn't locked out you lose energy to the suspension as you pedal. On pavement, you can lock it out when you don't actually need the suspension working for you, and unlock it to allow the suspension to work for you on rougher terrain when it makes sense to sacrifice a little bit of energy for a more comfortable ride.
You think so? Seated or standing...or both? Even though you pedal through the rear wheel? Still think so? Still think it's about 'comfort' off road? Not efficiency? Think about this a little, don't reply based only on your 'feelings'.