gelton
WKR
I have one of the original (or close to it) duplex frames purchased in 2012.  It has a single row of pals webbing on the belt instead of two which is why I know it is an older model.  I also have a T1 bag.  I absolutely hate it during day hunts but I absolutely love it on the hike in and out.  It isnt until I get 75-100lbs in it that I really appreciate it.  With 20-30 lbs in it, I wish I just had a day pack.  
When I bought it I thought it would be a good pack for 10 years minimum, but after ~ 5 years I cant wait to find out more about the new frame. I am definitely interested in learning more.
 When I bought it I thought it would be a good pack for 10 years minimum, but after ~ 5 years I cant wait to find out more about the new frame. I am definitely interested in learning more.