The other lenses I used a great deal were the 16-35 II and the 85 1.2 II. While I used the 300 2.8 II and the 24 TS II, I could have done OK w/o them. I was generally too busy and/or with a group to use the 24 - which takes proper concentration and time (for me anyway) and the 300 only occasionally contributed to landscape shots. For wildlife even the 600 + 1.4 was often too short. Having both bodies was a great benefit as I could have the 70-200 II on one and the other mounted on the 600 and a tripod w gimbal. The Lowepro and Lightware worked fine - though a full Lowepro was a chore to carry (47 lbs). The only real disappointment was not seeing any bears in Hoohnah - too early for the salmon run - next time......