First of all, I just want to say that there's been a ton of really informative and helpful info in the responses here - thanks all!
@Raymond Slarver, I've quoted above some things you said in your OP.
1. What specific things listed in the Level III skiing exam do you already know you need to work on?
2. What kind of skiing do you typically do when you are not teaching?
3. What skis do you use most often?
If people here knew these things, perhaps the usefulness of skiing on FIS race skis of some sort (I'm presuming as a daily driver) would become clearer.
1. As far as fundamentals go - everything could be polished, but nothing stands out as just totally rotten, I'd say? After some clinics (including with demo team members) last season I was working on fore/aft balance in general, and my upper body posture/movement patterns in particular. I tended to stand a little erect, even when I thought my upper body was where it needed to be. This summer I've been working to strengthen core and hips, both in the gym and dynamically (lots of time on inline skates)
Like I alluded to somewhere earlier, LIII is a big objective or target, but refining my skiing is the greater goal for me. I try to go into a season with some general ideal I want to work on all season in mind - last season it was developing a feel for the snow. This coming season I think it's going to be really nailing down an efficient, stacked position through all the stages of the turn, in whatever terrain I choose. That was part of my thinking behind getting on SL skis, at least some of the time - to get on skis that are going to demand I up my technical chops, on the hunch that that'll have across-the-board benefits. It's fun to get better, anyway.
I'll try to drop some video for MA sometime this season.
2. A little bit of everything, I'd say. Where I ski the most (Catskills), a good winter means I'll aim to ski ~75/25 on-piste/off - but we don't always have those conditions, especially recently. I'm pretty decent on steeps (e.g. honest northeastern blacks) when I'm feeling the mood, though a lot less into steep when it's like, glare-icy and/or flattish light. I'm not hungering to get to no-fall-zone chutes or anything, tbh - not that we have much of that here. I love a good glade, but get to do that less often unless I go further north or west. My bump skiing has gotten significantly better in recent years, but it still could get better - this is a matter of me getting better at picking lines as much as anything technical. On deep-rutted, irregular crapped-up bumps on steep terrain I struggle - that's probably the worst aspect of my skiing.
I like to go fast but also have a mental speed limit. Strong self-preservation instinct here
3. Mostly my Kastle MX83s the last few seasons, though I got my hands on a pair of those Crosson Dissenter 78s at the start of last season and gave them a lot of run, too.