I am once again experiencing block lag - If you could investigate this Andrew, it'd be much appreciated.
If it happens with ores, that's normal. That's our anti-Xray. But it shouldn't happen with stone and planks any more.
Yeah, when using an eff 7 I can no longer instantly break stone as it respawns for a millisecond, and therefore often have to stop to let the pick catch up with my movement. I think this is because I'm breaking the block twice. This is also the same when I use Super Breaker, and find it highly annoying.