Well dude I havn't stunted ever, but I plan too in the near future
I have a bud in his 30's , and he is a GURU at bike mechanics and stuff, he has raced on tracks more than enough to count, seen friends pass
, crashed, and he now is a motocross rider every weekend.
From what I have learned from him, the higher the rear suspension, the easier it is to raise the front. I thought the opposite , but in reality, I relized this - - - - - take a look at the pivot on the rear suspension and the axle on the tire, if the tire's axle is below the engine and the pivot it allows the bikes mass to move up and back. So if the tire's axle is below the pivot you can see how it wants to fly
Ya kinda see it ?
Just draw a simple picture - the rear tire axle, the pivot of the rear suspention, and mass of bike in the front. And you can see the physics of it.
Like when you look a Hayabusa's rear suspention, it is real low and the swingarm is practically parallel to the ground, thus making it harder to raise the front.
I bought this bike from a guy and he lowered it realy f**ing low,
I was a first time rider so I didnt know if it was lowered or not, the whole time when lowered I wrenched the throttle trying to get her up, TO NO AVAIL. So I brought it to my bud and he explained it to me, and we fixed it and raised it at his house (raised it about a foot or more), when it was back to stock, I wrenched the throttle and I got a few inches off the front. Proving what I have been saying
Also raising it will make the balance point more foward, best thing is not to mess with the bike's suspeension, because most bikes are tuned and made for perfecting . . . but thats just my opintion
So, the higher the back somehow makes it fly better.