I've gone all the way from import tyres through to soft track tyres, ETD and/or EMMs as well as adjustable suspension (AST) - promise you that the only thing that makes a real difference is the right foot. Different surfaces are a significant factor, but as soon as wheelspin starts, if you keep the power on you will be into wheel hop and lots of banging and crashing - and a slower launch. Every time I do a start we get a 64 feet time, so I get an immediate cross reference. As an aside the ETD helps more than a single front EMMS mount. You also need quite a lot of droop at the front - 60 - 75mm minimum, to allow for rearward weight transfer.