I took another approach and purchased a Manfrotto MT190CXPRO4 carbon fiber tripod on which I added the Manfrotto 327RC2 magnesium head. The tripod weighs 3.5 pounds and the head is another pounds a bit. Call it 5 pounds total. It will hold over 12 pounds, which is plenty sufficient from my Kowa TSN-82SV and its various eyepieces.
https://www.manfrotto.us/products/supports/tripod-legs/190
https://www.manfrotto.us/light-duty-grip-ball-head-327rc2
The tripod collapse all the way to the ground and the center column come out and can be set all the way to 90 degrees in a few seconds. The Kowa has its tripod socket on a ring so you can set it at any angle. The pistol grip allows me to point the Kowa in any direction easily and I don't have to move from position to do that, it's a one-hand operation. You can set the friction control to what you like.
I'm a little worried about using ED glass in my spotting scope as I find that this glass diminishes the effect of the mirage and I want to see the mirage in my spotting scope. On the other hand, since I've been using my March-X, I have noticed that when people complain about too much mirage in their riflescope, I'm not detecting that much at all. The March-X has ED glass. I don't see the mirage as much now and when I was using my NF NXS or even worse, the Weaver.
I believe that the March-X, along with the ED glass, probably has a greater aperture (lower f-number) than the NXS and certainly the T-36, so the corresponding DOF is smaller in the March-X and that probably helps reduce the mirage.
The f-number on the Kowa will be small also, with it's 82mm objective, but I can easily focus it to various distances to pick out the mirage.
So, my thinking is: bring a good quality spotting scope without ED glass to the line, use it to identify the condition and then shoot your condition using a very high quality ED-glass riflescope that minimizes or eliminates the mirage.
The other good thing with the Kowa for those who are interested; they make digiscope attachments that allow you to attach various photographic equipment to it. I got a photo attachment for mine and using the 21-63X zoom eyepiece, I recently recorded a short video that I will post here presently.