Hi merc82, can you help me understand the vardiff please? how come sometimes i get cycles such as the below

I'm hasing with 3 Furys, 4 Mh/s total. But the diff is so ridiculously high (16384!) that I haven't submitted a share in 5 minutes. This happens often, and it takes quite a while for the pool to recognize that the diff is too damn high:

And eventually it goes back to a reasonable diff but it doesn't stay there... eventually it spikes again and hangs the share submissions for who knows how long. Its not just this way for my Furys on Scrypt but my rigs on X11 and X13. Is there a way to request a steady diff by my miner's config?