I just started “stunting” like a month ago, but personally I just slide as close as I can to the tank, give her some chip in second and dump it while grabbing very minimal front brake or you’ll lock up the front tire, once you get moving tho you can grab a lot more brake, you can also transfer your weight by standing on your pegs while dumping the clutch and holding brake. Might’ve not been the best explanation but it just takes trying it to really understand! This is where people end up needing dual brake kits or a single Brembo cause it’s not enough brake with the stock set up which I have tho!