Burnout technique A999 trans

Hi,

I have a build A999 trans with trans brake and manual valve body. I just start racing the car a couple of months a go, and my burnt out technique was to stop in the water, start burnout in 1st gear, then after a couple of second shift into 2nd and when the tires start to create smoke I let the line lock go and slam the gas.

I was just reading an article somewhere else that it is prohibited to burnt out in 1st, but to start in second.
Apparently burnt out in 1st will damage the trans and can cause the sprag to break off and explode the trans?

Can you share some light here?
Your trans will not explode, but you can certainly break the sprag doing but outs in 1st gear specifically because your valve body does not apply the band in 1st gear. Do your burn out in 2nd gear.