This may not be relevant due to the change in operation of Giacomo Sporting but I had a fairly new at the time MX8 action, trigger group & forend iron reblued by Giacomo some years ago & I was very happy with the work.
The trigger guard had picked up a small "nick" in the bow which I polished out & the action was in very good shape except for blue wear on the edges of the frame. Giacomo suggested rebluing everything so that the polish & blue all matched & the result was like factory new. As I remember, cost was minimal & turnaround time was short. I just shipped him the action w/ trigger group & forend iron.
My understanding is that his son in law now runs the operation & this work was done back when the Grand American was @ Vandalia.