Thanks for the encouragement NTRPolice. It does help to motivate. Unfortunately, there's no seniors singles leagues (USTA or otherwise) close enough to where I live. It's all just adult leagues. There's USTA 3.5, 4.0, and 4.5, which I might never be ready to compete in (definitely not the 4.5). Then there's a couple of non-USTA flex leagues that do have a number of players in the NTRP 3.0 range. I have a 3 - 22 record in the (fairly new, it just started this past spring ... I started in it this past summer) Fort Lauderdale chapter of the Tennis League Network -- playing against 3.0, 3.25, 3.5, 3.75, 4.0 men, and one 3.5 woman.
Anyway, I'm not consistent. I would call that latest video I posted a good example of inconsistency, due to bad footwork and bad racquet preparation. I think, given my mobility issues, that in order to be consistently competitive at anything above the 3.0 level, then I should be hitting 50, 100, an indefinite number of balls in a row off one bounce at that wall. But I can't do that yet.
I do appreciate your (perhaps somewhat unrealistic but nonetheless encouraging) comments, however I'm currently playing hacker, dinker, lazy old man, cupcake tennis.
It's disgusting ... and embarrassing.
Below is a video of the latest example. It was shot the day before the latest wall video. Hopefully, subsequent wall and match play videos will show some improvement. (I'm giving myself about a year, playing on average, say, 3 or 4 times per week, to fully incorporate stuff I've learned here at the TT forums, and to be approaching being competitive at ~ 3.25 to 3.5 level -- but some of it depends on how my legs and feet progress, and not having another flare up of my Crohn's disease.)
By the way, post something of your most recent stuff when you have time. I enjoyed your other videos, especially those exhausting groundstroke drills.