Has anyone tried Schmacher BB springs on their B4/4.1 ? Do they fit Associated shock bodies ?

Just out of interest, with the Worlds kit coming out soon, how many people would like to see the kit come with a "spec" and "mod" sized spur gear ? With blinky 17.5 class becoming the norm (and 540 "silver can" class down here), people have to attack their motor plates with a dremel to make the big pinion/small spur combos fit.

It would be nice to see an option for a different sized spur gear in the kit (they're cheap), instead of having to purchase it separately (or perhaps a motor plate with bigger mounting holes).