The preset system on the Axe seems to be fast and right as long as you're used to it. Anybody is used to presetnumbers and certain preset locations.
Naming presets and having no number is strange at first...but in the long run you will see how great that is.
When you want to edit a preset and make some versions, you don't need to search for a free location anymore. Just name your new preset similar to the old one, like Marsha1, Marsha2,Marsha3..and so on. You can add and delete as many tries as you like, and you don't need to look where you can find unused presets to overwrite. When you want to try your different versions in the rehearse, they are all in a sequence, no need to remember where you put em.
You still want presetnumbers? Just add a number to the name like 010 Marsha1, 011 Marsha2, 012 Marsha3..and so on.
The KPA's UI is far better than it looks like, you just need some time to see everything and benefit of new ideas.