Note: Be weary of rigs who state they only work with a specific pool.

2-It is possible and normal if You get 10% more or less hash power while mining at your pool, and sometimes doesn't receive any hash while your pool is switching to another coin if you join a multi coin mining pool.
Please add more than 2 for your backup pools to optimize your mining availability, We will only compensate if there is any server down cause by our maintenance only.