Jim, first let me say, that so far here, I might very well be the least experienced drag racer weighing in on this thread. But based on what I do know, the 2 questions that I believe need to be applied here are first, are you using double adjustable shocks in the rear? If so, then I fully agree with what's already been stated by John to first try setting the compression settings to the max (if they aren't already).
The second question is, how heavy are the rear springs? Can you go heavier? That might reduce the bounce. I also feel compelled to introduce a third question, and that is, do the rear tires unhook after the initial hit, and/or after the 60' mark? Because if they don't, and they're staying hooked despite the bounce, then as it was already pointed out earlier in this thread, 1.2 60' times are pretty darn respectable even for a low 9 second ride. And therefore, if the tires aren't unloading further on down the track, then you might want to leave well enough alone, or at least write down everything you currently have including all the shock setting (both front & rear) before making any changes. That way, if you do make changes, and things are worse, you have a baseline to go back to. I think that if you are unloading the tires further on down the track and it induces tire spin, then what Harold has stated about raising the wheelie bars is a very valid point.
Sorry if I'm stating the obvious. I hope this helps, and thanks for the slo-mo vid. pretty good stuff.