Those already using P2Pool are not necessarily those best suited to suggesting enhancements. The most useful opinions might be from those, like zimmah, who currently use GHash and
don't want to switch. They are the target, right?
I'm especially interested in the opinion of larger stakeholders on this matter, i.e. those who hold large positions in BTC. The speculation forum seemed like a good place to get a reaction from them, only, so far nobody picked up that invitation.
Define "large position"

I think the really big holders are too busy sitting in their castles to comment or fund something important like this... pffft, most people are just mindless speculators with little care or understanding of the underlying technology. Tragedy of the commons and all that.
/pessimism