That’s what I thought (that you either already owned or wanted to buy the 100-400 for motorsports), so you surprised me a little expressing interest in a 200-600.
I’ve got a great RRS monopod sitting in my closet (from a while back when I had a 500mm f/4L), which will be nice for whenever I get rolling with my own 200-600mm.
I really liked the 200-600 when I rented it for the Elk rut last year...it made me break out the old monopod for sure. But I like watching the birds and the critters in my yard and 400 just isn't enough.






The road between two reservoirs is right behind me here so it was literally stop the car & go!! So glad I made that night before decision to aim for this spot as the reward of the first time seeing snow on these mountain tops (at sunrise too) was awesome. To top it all off, it then started gently snowing for a while at the start of our hike up from the original parking spot 








