I'd definitely say that there was a higher % of JR than Yorkie in him.
Though some are still quite skeptical of DNA Testing, it has come a long way since it's onset. I used Wisdom for my guys, maybe that's something you might consider.
Congratulations on your new lifemate !
Ref:
http://www.wisdompanel.com/?gclid=CP...FTCmPAodqgIAAw