As for the difficulty,
do I gain more depending on the difficulty?
Example:
web-ko1.gonspool.com:3333 (korea) diff 10000
web-ko1.gonspool.com:33331 (korea) diff 1000
web-ko1.gonspool.com:33332 (korea) diff 5000
web-ko1.gonspool.com:33333 (korea) diff 25000
web-ko1.gonspool.com:33334 (korea) diff 50000
diff 50000 gives you more coins?
each difficulty gives same amount of coins if you mine long enough. it only matters if you want to receive more frequent rewards but smaller or less frequent but bigger. so it doesn't matter at the end of the day
I'm learning now, so I asked that question. Thank you very much.