Paul Ebel ( and Carol Miller ( are both well thought of for leaf shutter repair/CLA. Both are as close to you as your closest PO. I've used both.

However, Flutot's has a waiting list (due to illness) and may not be soon enough for your purposes.

But if they haven't been used in a while, I would thoroughly exercise them (as noted earlier) to make sure that doesn't alleviate the problem.