You're complaining about no answer after only an hour between posts?  Sheesh.

Any way, to answer your question, my terraminers are also running around 1.3TH/s, where on BTCGuild they used to run at 1.6.  Is that due to P2Pool?  Possibly, but I haven't really wanted to switch back over to test the theory.  Could also be due to them starting to overheat, as Terraminers are known to do.  I haven't had time to re-do the thermal paste to see on that either.

As for your share question, read the past 3-5 pages (I think, maybe more) and you should get your answers, that topic was recently covered.