I wasn't able to find a tripod mounted Kestrel holder that I liked so I designed one and had it printed. I have used it a few times and its exactly what I wanted. Since some of you may be looking for something like this, I will post a link here, where you can have one made. They will print one from my file and ship directly to you. You can even select you own color. Please be aware this is a print on-demand website, so they do not offer returns or cancellations. It is designed to use 1.5in "wrap on itself" Velcro to hold it on the tripod leg, the holder does not come with Velcro. Zip ties could also work.
link below
https://www.shapeways.com/product/WLK9DGQ2H/kestrel-holster?optionId=319582200&li=marketplace
link below
https://www.shapeways.com/product/WLK9DGQ2H/kestrel-holster?optionId=319582200&li=marketplace