in the way back days when I first learned to pull the handle on an O frame, I played with a few cleaning solutions.
after seeing "dalmatian" brass, and the subsequent case cracking, I abandoned it.

Today, I just let the tumbler do its job, however long that may take.
If it takes too long, get another tumbler and solve the problem through volume.
If its still too long .. its still a volume problem. get a cement mixer, spray the inside with truck bed liner and let her eat.
If that still isn't enough, I envy you for your horde of loading minions and the ability to shoot in your sleep.

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it just needs more voltage