Eberlestock J34 is a very popular pack. I am looking at selling my X1E daypack I bought last fall and buying one of these to start backpack hunting with. I already have a mini-me and several other small daypacks for when I don't need much capacity. Anyway, I thought I'd see how others liked this pack. It looks like the base weight is less than the J107. I would be carrying 30-40lbs of gear packing in, and hopefully gear plus a muley packing out. I am comfortable and familiar with the eberlestock scabbard design and would like to stay with one of their packs. Thanks!