So shift light comes on during burnout? then you release throttle pedal some to control rpm, well that is how I do it

You have a torque meister tool? I welded a cut down 38mm socket to mine so i can do both sizes
I have one. and I am going to do that. I am just waiting for the spare 38mm socket to turn up.
I honestly didn't do the burnout at first how you described it. I was on the limiter. pure excitement. but if released it a little bit afterwards in later burnouts to 'feather it'.
after all the excitement and thoughts and ideas, I think the best option is to open everything up. see what is broken, fix that and rebuild it.
Loved reading your post, and congrats in getting to the 12's everything you wrote about is me everytime i try a run at the strip. I always seem to be faffing about then i usually look up just in time to see the tree turn green.
Hope your engine damage isn't to bad.
thank you. I try to tell the story form an honest and personal point of view as it really is a steep learning curve. but that is all the excitement and fun of it. step by step. have fun!