I like this idea Nate, and to add to that - I’d suggest getting to know 1 or 2 drivers as best you can for want of a better description. For example… I am 100% a preset guy & I don’t design sounds. So for me, if I know how to quickly find sounds and then develop and tweak a song in a structured way, that’s a good balance of breadth & simplicity, and more than enough for me to try and master. (And I’m still trying if any of this sounds like I know what I’m doing.)
Since I come from playing string instruments in bands I mentally have things like this: Launchkey + Native Instruments sounds = like having a guitar. Ableton = like an old Boss digital 16 track & one of those big blue boss multi-effect stompboxes. I tend to think of NI as a self contained instrument (even though it contains many instruments) or you might call it a rompler, whatever really. As much as I don’t love the inconsistency and general cruddiness of the UIs in NI gear - because of NKS integrations (nice for Arturia, Uhe etc); the pretty decent preset browser and tieing those to Ableton racks I can usually find a sound which is either pre-mapped via KK, or can be mapped to Ableton. This is also where having the LK integration with Ableton helps. Live is the main driver here because all the instruments end up in racks with either mapped macros (or automation drawn in after the fact if it’s KK alone.) That plus a row of effects (either native or 3rd party) in the effects rack feels like stomping on my old stomp boxes.
Obviously there’s loads of depth in both these platforms. But that way of looking at it it does help me mentally box these 2 things off into something mentally manageable. You could replace this potentially with another library of sounds, be it Spitfire, Arturia or another.
I guess you could also apply this to hardware. Eg: stick to Roland x Arturia, or the Elektron Digi series x Novation Circuits… whatever works. Usually if you learn one “thing” from a company you have knowledge that will transfer to the other. But once you go beyond 3 platforms, I’d personally find that too much to handle. Maybe with individual synths that would be different, but I don’t know enough about that to comment.
So yeah. 2 key platforms, stick to those and get good at them. Gives breadth and gives focus at the same time?