After dinging 51 with my pally I noticed a huge hurdle in how much XP is being generated per kill. It seemed like I had to kill twice as many mobs to generate the exact same amount of XP, as compared to lvl 49 or 50. The type of mob I was attacking really didn't seem to make very much difference.
After very successfully completing a LDON missing I only generated half a bubble of XP (the same situation as soloing). One of the more seasoned teammates stated that upon reach level 50 all XP is cut in half, unless you kill mobs that are at least level 50+. His statements pretty much coincide with the physical evidence I was seeing.
First of all is this statement true? Second, are there any fairly easy lvl 50 mobs that are not "uber god" status that can be fairly easily soloed?