Best tuners in product line

Yes they both use the same tuner.

Here BTW is a Dual user’s experience:

In fact when and if my Tablo dies, I’ll be happy to get the new Dual model myself (especially since I have the lifetime subscription). I’m in a tree surrounded valley and the Tablo works well.

The 4228 is a powerful 8 bay antenna. Is it possible at 5 miles it is overpowering some tuners?