I cut a section of pool noodle about 3" in length. Cut 1/4" lengthwise off the top to make it a flat resting place. Then cut a 45* angle cut for bottle clearance. Put pool noodle in DG not too tight, rest Impact on PN and shoot.
I already had a tripod, so I ordered a ball head with picatinny clamp from an outfit in Utah that manufactures the ball head. Also ordered an extended picatinny and this is what I use now. Hands free. Love it. Death Grip is good, but I did not want to squeeze the bottle.