i seriously hope you don't set up a quarry just to fuel your massfab XD
and to say that RP2 is better at redstone than BC is like saying cars move faster than humans. that's what it was originally invented for.
on a side note: the worst lagging system i ever created was the logic system for my mining ship with RP2, even when all timer are idle i get enough lags for a double click bug and if i remove the right bundles it gets up to 0,2 fps lags. with that said, RP2 isn't all that lag resistant
The Doubleclick-Lag happens only when the Client lags, what means that you may have Renderingproblems with all those Microblocks inside your Framemachine. Optifine could help you in that Case. But it can also be the fact, that moving Frames are causing large Lag.