I use the same setup, although the mic was 'purple panda' or something, but looks like the exact same thing just different name. That Tackform mount is spendy, but very nice. This is with a phone clamp so it's still a bit shaky, but way better than the cheapy clamp I used before. Microphone taped on the rear bumper just below the trunk.
Just picked up a GoPro 7 so video should get much better.