Or simply make the higher level mobs EP or the EP mobs DC/EM/T.. Level the playing field so people have options to change camps rather then all being cluster f'd around one camp..

Also perhaps re-looking at Valkrum Dunes proc times as currently the grouping I believe is a little weighed too heavily on farming Hipo's. You have either sheep that sleepga (terrible for a solo'er), sabotender's that use 10,000 needles? (I can't confirm this but have been wise enough not to bother trying) or Hipo's which don't have any really devastating tp moves.

This causes a huge amount of congestion during 8-16:00 (JA proc times) around Hipo's in Valkrum.