Namibia implemented mandatory dipping since my last hunt. It was not mandatory for importing into the US. It is just one more step in the export process and should keep US hunters from carrying home trophies. We carry them home from Canada all the time, the US doesn't discriminate against trophies from other countries.
One has to deal with both the exporting laws of the hunt country and the US impotation laws. They are not secrets and easily found on websites.
You'll also need to deal with those individuals who will cast uncertainty and doubt on any action outside their comfort zone. Not just here on this site but from those in the country one hunts.
