Is there an answer possible to this "request restart" thing?
This is NOT wasting hashrate. It's related to merged mining and simply means that you received a new work to mine. But no hashes were wasted - you simply start mining on the next set of data.
with the current settings: 100% LTC in the last 30 Days, 2% Fee, and wasting mining power because of restart requests, this pool is not really profitable instead of mining LTC directly.
Remember, that the numbers displayed on the website are after taking fee. So it's not 100% minus 2% fee. It's really 102% minus 2% fee = 100%.
The pool had some tech difficulties in May which affected profitability a bit, so our 30-day average is low. But our 5-day average is 111% (after fee).