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?
no, This option provides more efficient mines.
Mining high performance equipment at low difficulty levels is not well understood in the pool.
also,low performance equipment at high difficulty levels is not well understood in the pool.
so my pool give port.
have a nice mining.