Possibly dumb question. But "submit stale shares" leave it on? Turn it off? I notice a bunch of them after a block is found. If there's no earnings in it, then no point submitting them. But I just wanted to check how the pool actually calculates for them.
(And if it's "Nope, don't need them", telling people to turn it off might reduce a % of your bandwidth?)
Pool rejects all stale shares so you can disable "submit stale shares" option.
Stale shares is a very small part of the traffic but anyway thank for worrying about pool bandwidth.
P.S. What hardware and settings you use? Maybe you need to use lower diff settings?