X Pro building tips

[4_cell_racer]

So my X Pro arrived today screaming to be built.....

Are there any build tips I should be aware of during the build?

Also I read somewhere about drilling out the shock pistons!!? Do you still just keep to the 2 holes (or do you drill more) If so to what size?
Are there any other make of piston that fit the X Pro shocks?

Oh and some gearing advice please, going to put in a LRP Sphere with a 10.5 motor

Thanks in advance
Lee