Soft spot in cockpit seating area

Oct 22, 2022
16
Sirius 21 Lake Ontario
Hi all,
Has anyone repaired soft spots on their Sirius without doing the whole cut the fiberglass out routine?
My spot is just back of the port cockpit bulkhead within, and on the seating area.
I have looked at inject a deck and seen videos of others using Gorilla Glue injected between the layers with some success..Practical Sailor Magazine suggests this is the best approach... Can Glue Injection Fix Rotten Core? - Practical Sailor
Any thoughts, experiences with this?

Thanks!