Did this a few times on the old stg2 CR170 and it does indeed work, but it won't shift to 2nd for you. So you need to be real quick and any gained made on the launch are lost if you don't time the shift to 2nd perfectly.
And... It feels violent. Bad violent. As in... Gearbox is being shredded.
hiya P the person I was referring to was indeed you , and that is the reason why I havnt tried it lol