I try to break down the trick or feature into parts and work on the parts. Like small jump, bigger jump, bigger jump, or do 180's while standing, do ollies while standing, then start combining them. The point is to convince yourself that no part of the trick is beyond you.
This is great advice and leads to actual progression of skills rather than "trial and error" hucking. This can included practicing the individual parts outside the park. Like getting comfortable for speed by flat boarding down a steep face.
Also game planning the trick can lead to a successful attempt. In the more recent Transworld Snowboarding magazines you may notice them being broken down by a model called ATML. Gaming planning what you need to do in each phase can lead to more succesful attempts, or at least and understanding to why you got munched
. The four parts of it are listed below.
pproach - speed, side approaching from , snow conditions, etc.
ake-off - Speed, POP needed, Stance alignment, timing of movements, etc.
aneuver - Movements to accomplish, sighting, distance needed. reference points, etc.
anding - Condition of landing, run out, movement to accomplish, edge to land on, etc.