While I can't comment on druids playing style etc, personally I only generally use single shot, especially gratifying with my M14 & fal, & hopefully my new G3, & all my guns are sub 1j, all running between 300-335 FPS (but well sit up hops) & do well in a sneaky dmr stylee, if a knackered old fartknocker like me can get by with less than 1j, then surely it won't hold back fitter livelier players.
The point I, & I suspect druid was making, was that in these anti gun times, if the sport was threatened in any way, a 1j ruling would be one possible way to placate those who lobby against us ?