Here's a shot of my User1 bank that covers all my User IRs. Not everything is used.
User 1 is my Hendrix IR (from original 2017 700+ Naked Amps, now discontinued in favor of Dream Rigs), it is repeated in User 30
User 20 - 33 are just for the Dream Rigs for the AX8 and XL/XL+. Some of these are now Factory IRs in the Axe-Fx III or FM3 that I provided.
User 33-42 are specific to the old Mark II/Original, which didn't have those IRs as Factory cabs
User 44-49 are for 1400+ Naked Amps and only apply to the presets that Justin York, Leon Todd and Fremen submitted for it.
User 51 - 64 are for the 200+ Bass TonePack on any recent Fractal unit. I don't actually use every IR shown but they are all included.
The first Brit Rock Royalty #1 used User 55-56, but I have moved those to 65-66 for the fw 14 update and forthcoming FM3 version (stripped down) of it.
Nothing above 67 is actually used by me in a TonePack (yet!) and I may move those around, they just happen to be there right now... I'd probably want to reserve 67 to 99 for future -- but I'll probably never use them.
Hope this is helpful - Fremen, I didn't mean to hijack your thread!