Didnt think you could be planting any boost in 1-2. So with that in mind, wouldnt it be a much better soultion to just cut boost or minimize the shit out of it and just plant your foot to make the most NA power in those gears to be more consistant and quicker?
Running slicks is not only illegal (I am one to talk I know. lol) but it aint safe if it rains or you hit some dirt. Not to mention driving around on them constantly, doesnt that wear the shit out of them?
Its not rocket science but like you said it takes practice and a well setup car to make it worth while. And its each car is much different from the next.