I want to be sure I understand your observations-
(Please correct me if I am wrong)
I have Chèvre K35 Retourne & originally bought the Mai Tai first release. The updated version came out. I bought that one.
Chèvre can slouch. I want more structure to my bag.
From your experience with 7RP, do you think it will help more so than the MT ? (I understand it's just your opinion [emoji4])
Yes, if you don't mind the price. I think the 7rP inserts fit the Kelly better. Hope this helps!