Difficulty setting

[delta11965]

What should I set my stratum difficulty setting for mining? I'm running 8 Cubes on GHash.io that are hashing at 36-38GH but I keep getting alot of stale I currntly have them set at 64 and each cube is a separtate worker. Also does it matter or is it better to use more workers or should I use just one?

Thanks for the help

[vm1990]

probably better to use separate workers and set the difficulty to about 16 or 32

[delta11965]

Thank you, How does that correspond with mining and my shares mined?