As you can see (people who mine on flypool) as they announced on their twitter account https://twitter.com/etherchain_org

In order to provide a more efficient mining experience we have increased the default share difficult on the #Zcash pool to 16000

What was default before?Does it really helps to miners?

I was having like 5k shares per hour, now i have 2.5 shares per hour on pool.

Opinion?