Preliminary tests show that the save bloat has been eliminated! Testing results below:
I was trying a playthrough of my mod with Mojarq the kitty a while back. I compared the times and file sizes of that save with a new test character.
Mojarq the Kitty:
Save 1 - Time: 00.42.50 Filesize: 4209 KB
Save 2 - Time: 01.00.34 Filesize: 4847 KB
Save 1 - Time: 00.37.37 Filesize: 3165 KB
Save 2 - Time: 01.03.57 Filesize: 3347 KB
I will continue to test it, but it looks like the problem has been eradicated. Or, at least, hugely reduced. Huzzah! :-D
If test results hold steady, then this fix will be included in the next update along with many other improvements.