I had the same issue but I don't even know what the extra data field(s) are.
Go to app People on your EVO 3D
Touch the menu softkey
export to sdcard
choose Phone account
note filename. (something long ending in .vcf)
Plug it in to your cpu as disk drive and copy the vcf file to your computer
Unplug 3D(safe removal), plug in LTEvo as disk drive.
Copy file from computer to LTEvo.
Unplug LTEvo(safe removal), open People app.
Touch menu, select Manage contacts
Select Import/Export contacts
Import from phone storage.
You can also email yourself with the vcf file as an attachment. Download it on your LTEvo and import from phone storage. It should search for the file.