Wow, thanks for all the great advice all (especially @Gahlord and @Joseph, with @RABID dropping some serious knowledge early on).
The proximity thing is indeed a big factor. I’m surprised at how small a difference it makes though (in terms of cm, not tried meters). One of the 4060s in the example above are on that gooseneck telescoping away form the drum (stuck to the Naiant with blue tack). I’ve yet to test a further distance (as @RABID suggested) as I’ve been busy with getting ready to start teaching this week (remotely, thankfully(!)).
I’m eyeballing the 4099 now as well, as it can definitely handle the SPL, and I do like the DPAs. My concern (as @Joseph pointed out) is the pickup pattern. Bleed isn’t so much an issue, but I do sometimes do things above/around the drum. Not like talking a walk or anything, but holding and bowing a crotale in my hands (in the air, above the snare), or handheld electronics, etc…
Towards that end I’m going to do some testing with the DM20 (hypercard) to see how it fares in that context, to see how viable a 4099 would be.
I’d love to go with a multi-multi-mic setup. Where I have a couple DPAs (or even more, like a contact mic, etc…), but it gets a bit difficult for portable stuff. My main gigging interface (RME UCX) has only two pres, which are generally a DPA and the Naiant for friction-y stuff. Or once I start going norns with things, I only have a single portable preamp (for now). I want to make some DIY stuff as the Naiant doesn’t need a great quality preamp, but a DPA would benefit from one.
So 4060 + 4099 would be fantastic, but I generally don’t have the I/O for that.
As others have mentioned, if I want to go onto mic stands, there are loads of possibilities there (I’ve got some C214s, and MK012s), but I want to avoid stands. I do have a 3d printer, so I’m not averse to making clips and mounts and such, but that gets harder with lipstick mics, full-sized xlr cables, etc…
So in short, some great thoughts! I’ll test the DM20 “in context” and report back any findings, but at the moment it’s between a 4099 or a newer “core” 4061.