Originally Posted by Lestropie
In Trials HD it's easy to fall into the trap of simply reacting to whatever the bikes doing at that moment in time; the rotation physics react so quickly that you can usually compensate.
In T2SE the time taken to get the rider from a full frontal to a full backward position (and vice versa) is slower, and the midair change in rotation when you hold down left/right is also much slower. Therefore to ride well you need to be much more predictive; know what the bike's going to do, be more wary of how you land and what effect it will have on the bike, etc. etc..
If you're finding playing T2SE is helping your THD riding, it's probably because you're subconsciously starting to understand the physics better, and therefore starting to predict what effect your inputs are going to have in a half second's time, and adjusting them accordingly.