unless I am somehow misunderstanding the math/logic behind this, wouldn't you make more overall if you had many blocks staking for small amounts several times a day, rather than occasionally doing one medium or large block every day? Because the second you get a new POS reward, it goes back to work for you aging and then eventually staking again... earning compound interest in a sense.
BTW hashcows fixed the hbn withdrawal issue on the multi pool and I got my HBN!
the big block will also stake and the earning will stake as well, they both need 10 days to restake so once they stake if you combine them in 10 days they stake the balance got bigger
for instance
if you have 500 HBN after 10 days it will be 255 + 255 so each 255 will stake after 10 days
or if you combine the total amount to 510 it will stake the same amount.