So still no real use, but just from playing with the Sentinel that
@MCMXI was kind enough to send me, I could justify buying one (750ish for what I THINK the one I have is closest to)....even if it cost the new scope, or rifle I happened to want.
About the only thing I couldn't do with it comfortably would be shooting full prone. It fills the roll of trekking pole(s), crossed sticks, bipod, tripod, monopod, prod etc. Heck I came out after getting my phone, and both kids were dangling from a leg where I'd set it up for pictures. I've had rifles 12-13lbs hanging off of it at 5' high, by just the "universal" adapter that screws into a sling swivel point.
The thing fits into the quiver pocket of my badlands 2200, and I can pull it without taking off my pack. It does stick about 6" over my left shoulder tho.
I'm supposed to take a friend and his daughter hunting Saturday, so hopefully I'll get to use it....I'm saving actually writing something till after I've had a chance to do more than shoot my airgun from it.
The Javelins really bloody nice too, and one neat thing is the bottom most section of the tripod legs can be moved to the Jav, by swaping collars, to creat a sitting bipod that still only weights a few oz.
Again haven't used either but I managed to devote about 3hrs to just playing with them the last couple days.