I prefer Monokote for longevity, and I do agree the Ultrakote is a bit more forgiving when using it. The shine on the Monokote far outlasts Ultra though in my experience. Try either one though if you're just getting back into it, as you'll do fine... and when the bug really bites, you'll try other things anyway. Films and Tex coverings haven't changed alot in years.
Battery and electronic technology on the other hand has changed dramatically in the last 10yrs compared to coverings... that might be a good topic to study up on too.
Welcome back.