I have used Home Again since it 1st came out and
have all the dogs (labs, Sussex, Eskie) as well as our Tortoise done. At this point I am not planning on any changes as I too want a chip that can be universally scanned. In fact, if my new Sussex isn't with Home Again when she comes home in a couple of weeks I will have her done as well.
I purchased the new AKC Scanner in April of this year. It was supose to read their chip as well as Homeagain and Avid. Well it do NOT. Then it would only read their chip sometimes. So I sent it back for different reader. The next reader did the same thing. Soooooooo
I purchased the homeagain reader which works wonderful on both chips and I purchase the Avid chips because they are cheaper and you can buy 5 at a time.