Upgrade McCormack or...

I am running a CD player directly into the DNA-1

It hardly matters what happens on the way from your place to SMc Audio, especially if you are getting the works, since they don't use much more than the case, the heatsinks, and maybe the transistors.  After the upgrades, Steve and Patrick will pack the amp(s) well for the return trip.  The DNA-1 is heavy, especially with the gravity base, but still under 100 pounds and should be safely handled by competent UPS or FedEx drivers.  My pair made it back from SoCal to Michigan with no issues and are the black ones pictured on the website.  Here is Part 1 of a four part interview that may get you excited about the possibilities.  Make sure the boxes are solid and have "Fragile" labels on them.  The improvement in sound will be well worth the trip.

@mitch2 Thank you so much.for the input. I guess it should not be a problem as long as it is not handle by USPS.

@patrico200 - the process of shipping heavy/expensive audio equipment is not without risk, but there are things that can be done with packaging/shipping to mitigate the risk as discussed by me and others in another thread yesterday.  If you are sending Steve amplifier(s) to upgrade, utilize the best packaging you can find for the trip over so he can use the same packaging to send them back to you.  See my comments in the other thread about closed cell foam and spacing the equipment away from double wall cardboard boxes, as well as double boxing.  You can also discuss your concerns directly with Steve when you schedule the upgrade because he has shipped many of his amplifiers to customers.  Good luck.