P2pool works. 
Pools were selected from http://p2pool-nodes.info/
If there is a specific pool, you want a try, please let me know!
Can anyone confirm this? Anyone tried?
Pools were selected from http://p2pool-nodes.info/If there is a specific pool, you want a try, please let me know!
Replied questions:
1. S4 is compatible with p2pool?
Yes
1. S4 is compatible with p2pool?
Yes
Can anyone confirm this? Anyone tried?
A screen of an S4 connected to a local node for one minute is hardly proof that it "works" - it's just proof that it's connected. You said the S2 "works" with p2pool also - but it doesn't, not efficiently anyway. Can you post some stats please? Better still, point one at my node for 10 minutes & we can see for sure:
stratum+tcp://iyftech.zapto.org:9332
Thanks.