Is it seperating but then unloading and the body coming back down?
Didnt look like the tires were distorting

When i video Brad's Demon on my iPhone i pause it and then drag the play bar.

Are those wheelie bars the ones that transfer load when they hit back downward on the rear axle? Seems like bouncing the tire. Maybe slow/bump up the compression on the rear shocks or soften the downward hit the wheelie bars transfer to the rearend.

2 ways to fix it,Menscer or Santuffs

With the camera mounted on the wheelie bar you loose all frame of reference. It's not bouncing the tire, it's the camera moving.

After spending MANY MANY hours recording and looking at launch videos, I would recommend you focus on getting shots from the side of the car. I've found that to be much more useful.

If you're using a gopro, their software is really good for reviewing in slow motion. You can zoom up to watch tire hit too.

Check this out. I just threw this together for someone to show what you can do. This was one run, one camera, just edited 3 ways.

https://youtu.be/rC7EASI6ihY

Yea that
Can also pause the video and screenshot too
In both photo's the car is moving

Helped for us

I'll see what I can come up with on the with the GoPro software.. the GoPro is not mounted to the wheelie bar it is firmly mounted to the body