I see, then there is little hope for the S-HASH to work with P2pool.
Currently I will stick with Eligius but fallback to HHTT to see how it works.
Thanks for the help!
Another problem with p2pool is the fast block times, and the fact that the bitfury chips don't have an option to cancel the job they've started. This means that it would be impossible to avoid large percentage of stale blocks.