So, had a weekend up north with both the mini2 and the M2P but just the smart controller. Thoughts and feedback are:
1 - So, so, so nice not to need to carry two controllers about, and not to have to faff with connecting the phone to the controller for the Mini2.
2 - Occasional issue with the Mini2 where the image on the screen from the camera would just be solid, primary blue (overlaid with the controls and menus, etc). Hit the photo button and it takes the photo then goes back to the expected live view from the camera rather the blue.
3 - Switching between the Mini2 and M2P isn’t the most reliable. Switching to the M2P from the mini was okay, but more than 50% of the attempts to switch back to the mini failed and I had to re-pair it four or five times.
4 - Anybody figured out the button combo on the smart controller to smoothly scroll the zoom with the shoulder-wheel?