I've been dealing with bumblefoot all summer due to a leaky waterer I didn't catch soon enough while I was still using pine shavings. I've been gradually noticing that less is more with quail bumblefoot; they just need time and a little assistance to heal it themselves.
My own (inexpert, but seems to be working) treatment plan:
I toss the birds in a plain warm water foot bath bin every ~2-4 weeks for about a half hour (I've stopped using epsom salt, as well, since I couldn't actually find any scientific sources for using it and I was worried about how much of it they were drinking), to fully soften the scabs.
The biggest thing I've noticed is that their bodies seem to have trouble getting rid of the scabs, probably because the flooring we keep them on isn't as rough as the terrain they'd have been running over in the wild. So after the soak, I give a light tug around the scab edges with tweezers, and get off what I can WITHOUT reopening the wound (if it starts bleeding on accident, I put on plain Neosporin [no painkillers] and wrap with vet tape for a day).
By doing this, their feet have been getting progressively better, to the point I'm not worried about them any longer. Most are now fully healed with perfect feet; the others have tiny lingering scabs that I think they'll be able to get rid of on their own, though I'll check again in another month.
Basically: I'm giving time for the skin under the scabs to be fully healed, then helping gently peel the stuck scabs off. As far as my birds go, I've never seen sign of the weird hardness inside the wound that chickens apparently get. I don't think you need to keep up your more involved routine--the stress is probably worse for them than the scabs. Unless you notice their feet getting worse, just leave them to heal for longer between treatments, and see if that makes things less stressful for both the birds and you.
If you're keeping them outside, I personally prefer pine pellets as flooring now, since it keeps their feet INCREDIBLY dry while still letting them exhibit natural birdy behaviors like dust bathing and foraging for treats. It's also even easier than wire, since there's no regular tray cleaning; I'm going on two months with the same (deep) pellet bedding without any hygiene issues.
Good luck to you and your birds!