Magnepan 3.7i Upgrade

Was curious if any 3.7 owners sent their speakers to factory for the upgrade, and if so how much was shipping?
The actual cost will vary with distance, but the best way to ship Magnepan speakers is via Old Dominion Freight and they are best protected when strapped to a pallet. That is how the company ships them, and OD has a special rate for loudspeakers that you should request. Also be certain to insure them in case any damage occurs.
I recently used OD just for this purpose; it was around $250 from the west coast.