2wd motor and boost Q

[tonydevon]

ok so I have the gearing right in my car, Im now at a position where Im happy with my ability, or reduced lack of ability LOL

I have had a HW7.5 in it since I started buggies 12 months ago

recently I have been winding things up a bit

at what point do you start to think, maybe I need a 6.5?

boost.. as far as I understand it this just adds timing right across the rev range, well Im now at 17 degrees on the ESC

are people happily running more than that, or is there a kind of rule that if your adding X degree of boost then maybe go up a wind on motor and go back to less boost?