I'm of the opinion that this whole filter efficiency thing is blown way out of proportion on here.
I ran a particle count on an Ultra and it wasn't that impressive, the same car currently has a small HAMP on it and I suppose we will see if it does better, worse or the same. That'll just be one piece of data but... anyway.
I'm not saying that the ULTRA is a bad filter, to the contrary it is a very good filter particularly if you plan to follow the MM and run the filter 2 OCI. But there is absolutely nothing wrong with the Honda branded filters and most of what you read about the A02, PH and TG on the Honda forums is hogwash.
Don't over think it.