About the V3 and A4 PDFs I have to tell you that it is not the best experience. The V3 has 3 levels of zoom:
- Fit to page
- Cut the blank margins
- half page landscape
If you send me a private email I can do a test with an A4 you like and post the pics here.
Anyway, I suspect that if you want to view CBRs or A4 PDFs your best alternative is the iLiad.
And about Vizplex, I do not think that anything is shipped now without Vizplex unless Jinke is using very old stock but unfortunately you will have to see 2 devices next to each other to spot the difference.