Originally Posted by OrangePower
If you were a 4.0 / 4.5 in HS, and are in decent shape in your early 40's, then there is no way you are lower than a 3.0 now. In fact it is very unlikely even that you are a 3.0, given your age and fitness level. Maybe if you were 60. Most likely you are a 3.5 right now.
Also, when you self-rate, you keep that rating for anywhere from 6-18 months, depending on when you start playing league, and how many matches you play your first season. On the other hand, your improvement will be rapid - you will see a lot of improvement over the first few months. So you need to self rate with that perspective in mind.
Unless of course you are trying to game the system.
I see your point.
OK, 3.5 it is then.
Your explanation was logical and made much more sense than the other poster who was talking about how it's impossible to not forget how to play tennis great after 20+ years or some nonsense like that.