Wondering about experience with these two heads. I have narrowed it down to these two. Will throw on a two vets QDT inverted V2 tripod. I will be using it for 100% predator hunting and maybe one day for NRL Hunter. My rifle is a heavy PRS style 6CM. I have felt and mounted my rifle to my brother's TV 65mm ball head and he loves his, but I have never played with an Anvil 30. Is the inverted ball head from RRS worth an extra few bucks? Also, we hunt out in west Texas where everything gets covered in dirt. Will the inverted ball head get gritted up? The two vets ball head is nice because it has the panning feature as well, as most of the time we are are using the rifle to swing around scanning with thermals, and locks down for a shot. What makes the anvil 30 better for scanning and shooting if at all?