I switched from clevermining to http://coinking.io/?r=11339 I had over 2% rejects on clevermining and now I am down to 0.95 on
coinking.io - they also do poolmining and the poolside hashrate seems to improve maybe as a result of the lower reject rate? Anyhow I am happy with it and they have a referral program which compensates for the 1 percent pool fee they charge. Before I get flamed for shamelessly promoting this pool please try it our yourself and let all know if it works. I am not affiliated with them in anyway and yes if you use the link above I think I would get the referal bonus. Let me know what you guys think!