RE: Arrow weight / kinetic energy question??
Paper tuning IMO, is a waste of time. I stronly recommend (as MeanV mentioned) bareshaft, broadhead, and walk back tuning.
You DEFINITELY need to be shooting at the very least 400gr. if you plan on shooting elk.
I guess Easton took their tuning guide off the website. If you want a copy, PM me and I'll send it to you.