Thanks for saying this Ray. I’ve used RC4.3 for many years and it has provided me with ATC that is simple and for the most part sensible. True it doesn’t provide many of the advanced features as such support for SIDS and STARs, and ground control is doesn’t exist. What it does do is provide a rational level of service between departure and destination. And the chatter files provide some level of immersion as they are recordings of real ATC. I would certainly take RC4 as alternative to being handed over to Manchester Centre while flying at 500ft in the Welsh Low Flying Area. As you mention, the program as donated by JD is what it is but I wonder whether his arm could be twisted by Asobo to provide it if the terms were favourable.
Frankly, anything is better than what we have at present.