I have used the tripod trigger sticks plenty. I often carry them around fully extended with the legs strapped together to use as a standing binocular support for long range glassing. Shot plenty of deer off them but usually have time to lower them for sitting or prone shooting. After a lot of use I have had issues with the legs but look online and it's an easy fix. I also fell one time and cracked the grip near the base and after taking the whole thing apart there is a weakness in the design so I beefed mine up with a few layers of fiberglass to avoid future problems. For normal, shoot off the supplied "V", I would recommend them. If you get one, do yourself a favor and add a paracord or other kind of sling for times you don't want to carry them in your hands. I have a base plate on my spotting scope so I also added a tether to the "V" so when using the spotting scope the "V" doesn't get lost.
That said, I am not sure how well they would work with a clamp like you see on dedicated tripods. A lighter rifle might work, but a heavier one would be questionable. I say this because I have used it with my spotting scope and you need to be careful to center the weight over the legs on uneven ground.
If I were you, I would not hesitate to try a pair as sold and decide later if you want/need a clamp. Good luck!