Recently bought a spotter myself. I was pretty convinced on a straight, but bought an angled, and I'm glad I did. At the shooting range I'll rotate it for easier target viewing. Truck usage, well I thought this was something I wanted a spotter for, but I still use my binos as they are quicker and easier. Long range shooting our targets are all uphill so the angled is easier. Hunting I could probably go either way, I glass uphill about as much as downhill so no benefit one way or another. I thought the straight would fit better in my pack, but the angled fits just fine. Another benefit of the angled that I've found is that since I'm tall I can get away with my tripod set a bit shorter (more stable) then if I had straight scope. My vote would be angled.
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