I have a question, I have setup 2 nodes one has my S1's hooked to it and the other has my S2's attached to it, they seem to hash a lot better doing it that way. If I have them all on the same node my total hashing power decreases, will the slower hashing of the S1's bring down the S2 hashing rate or does it make no difference? Are there any pros or cons of running 2 nodes?
One node should be able to handle both. There are known problems with S2s working on p2pool. But if you found a way to get it to work, do share.

M
Thanks for your feed back, I know of the problem with S2's on p2pool so have just been playing around a bit, when I had them on the one node with the S1's my S2's hashed around 750-850 GH/s when I put them on there own on the second node I'm getting around 950 GH/s not sure if it is a work around as I have only had it running for a day so will test it for a couple of weeks. I have them all running with the same wallet.
EDIT: No my S2's have dropped off again back down to 750 -800 GH/s I hope something gets done to fix this soon.