well my 24h+ testruns are over and i might say those 25-30% higher profitabilities
reported on zpool are non-existent, i get very similar btc from nicehash and zpool
the same algo (qubit, quark, x11).
so in the end block % is much closer to reality than shares %, not technically but for practical calcs.
unfortunately it seems impossible to construct a formula or even a good estimate
since zpool and NH use so different approaches
Based on a recent short multi-algo test on NH, I'd say zpool far outstrips NH, but maybe that can change with supply and demand of orders.
There are definitely some figures that don't seem to add up on zpool, whereas hashpower didn't seem to have the same problem. The latter pool though looks like it needs putting out of its misery at times.
it's important - i didn't run multi-algo, i ran one-algo per test on both,
just to see what really means if NH reports 0.15 and zpool 0.21,
but actually i get almost the same amount of btc.
i started that only because of those strange share % discrepancies
Checked back (as I do from time to time) to see if anything has been done to address the shares issue; it would appear not. For those unaware, there has been a persistent discrepancy in shares credited to the tune of ~20-25%.
At any rate, it seems prudent to account for a 20-25%, "fee", when mining on this pool.