jumping technique

Are you talking about seat bouncing? If so, that is definitely not for every jump...it is nice for quick jumps out of corners or areas where you need some extra pop. I would say more for AX and SX not so much for MX ...4th/5th gear seat bounces don't typically work so well.

I experiment with both while riding plus it depends how tired I am too...

People seat bounce huge jumps all the time. Have you ever seen a national at redbud?

How does seat bouncing work?

I've been trying to stay seated on takeoffs. The key is to carry a ton of speed, so you're basically chopping the throttle and soaking up the jump face. Gotta have more speed than you need in order to do that. Also, this is on a 2-stroke, it's been so long since I've jumped a fooper, I forget that you need to constantly rail the throttle to keep the nose up.

The spring rebounds and pushes you up higher in the air, duh. That should take care of that discussion, yeah?

Jump distance in impacted by how much energy you put into the rear spring. The rebound energy of the spring changes your trajectory. If you are standing...you will always absorb some energy. Sitting guarantees more energy goes into the spring. If you sit extra far back and pull on the bars at the right time...you can maximize the energy into the spring...and thus jump further. This is the full 'seat bounce' jump.

Putting energy into the spring is also much less forgiving. You have to balance that energy with throttle and position. If you are little off...you can boner air or go over the bars. James Stewart is probably the best seat bouncer out there...and look how many times HE has gone over the bars hard.

For 99% of riders...seat bouncing just slows them down and makes them lazy. Jumps that truly require a seat bounce are not that common. If you are clearing by jumping seated all the time...you are unconsciously slowing down...then jumping high and slow. DV has even commented that at the pro level...there are guys who make mains who could be top 10 guys if they would stop seat bouncing everything.

Instead, concentrate on railing the corners and absorbing if you are OJing. You will see Pros in SX who are railing corners and scrubbing triple right out of a corner at the start of the race...but the end of the race...they are tired. All that standing up right out of corner drains you. So they slow down...stay seated...and triple...but lose 1/4 s every corner. The top 5 or so guys are so fit that they can maintain technique for a whole main. Last year...DV even commented that at Oakland...during the last 3-4 laps...he thought James was getting tired because he started jumping seated more. He later spoke to James in an interview...and James said that he had given up on catching RV..and was dialing it down to bring it home in 2nd.

Unless you are an A rider...dont worry about seat bouncing. It will just become a crutch for you..