Re: Leaving the dinghy on the mooring
I used to use the dinghy painter as an easy pick-up when it was blowing and was single-handed. Much easier to get you boat-hook under the painter and get a hold of that. Less chance of missing than a pick-up buoy.
Of course, if you are used to lifting the mooring chain on board that would make things sightly more awkward. I used a 6ft mooring warp (2 actually) shackled to the riser chain. Once a warp was on my foredeck cleat I would undo the dinghy painter and walk it back to a stern cleat.
Also perhaps easier to come alongside the mooring and pick-up from the cockpit. Again easier if you have a warp to drop over a sheet winch whilst you sort things out. Dinghy painter to the stern and walk the warp to the bow.
Another person's thoughts about you are outside of your jurisdiction.