Launching is what i do best.............................
Had the OE gearbox give up 1st time in 2004. Got told to purchase a '
Bernie' Gearbox man box which was slightly uprated....Seriously gave it death all the time and it was fine

(Done over 400 full bore 6500rpm+ bad boy launches)
Then decided to do my 1st track day and the 3rd gear synco buggered up mullering the 3rd gear cog so it's now broken on the driveway
Your not the only one so don't worry