In Tribes: Ascend, the in-game skiing tutorials cover game mechanics (ski down slopes, jetpack uphill) but not controls. It feels like I'm more maneuverable when not pressing forward all the time, but I wonder if I'm not achieving maximum velocity if I don't press forward. Should I be pressing forward (w) while skiing to go forward? Or should I just let momentum carry me while skiing?
It really depends on what you want. If you hold forward, you'll go faster, but you won't be as maneuverable. I usually hold forward while I'm skiing, as I think speed is more important than maneuverability in Tribes: Ascend.
Try to not use forward at high speed, I notice a big difference in both speed and maneuverability (strafe keys gets locked while pressing forward)!
Use forward (and backward if you must) to land properly...