NE is pretty slow moving but there is some good background info to be had there. Check out Accurate Reloading's Double Rifle Section too (most cross-post under the same names). It's interesting reading if nothing else. Everyone has both a gun and brass that they hate!
Best thing to do is to find a place that has several and handle/shoot them. Esp go the a DRSS shoot. For the $$ they cost, a road trip is a wise investment. (I even had a dealer ship a gun to me just for inspection).
I settled on a Heym 88B after shooting several - should have it within the month!
