Mainly asthetics. Our house is on a corner lot, on the inside, so the house is visable from basically all sides, except maybe the NE side. The only other thing, is that the installation gets more complicated. Having to find a way to bring the coax in, mounting a mast to the roof, and grounding the antenna. I'm not positive, but I'm also sure WAF would also not allow me to install it outside.
I've been doing some tests, using the Fusion signal checker software. I have both Fusion cards hooked up now, using one splitter.
I made measurements on every channel, and I'm seeing between 0-4dB loss from the last time I did this, with just one tuner, and no splitter.
Fox used to be one of the strongest stations, and still is, but I've got other stations with the same power level, that have no stuttering problems. (Interesting, that some appear to have gained power...probably due to my averaging...) I just watch the signal for a while, and then write down numbers that are in the middle of the highs and lows that I'm seeing.
One thing I don't understand exactly, is why the pre-amp does not help. Since I don't have any channels sitting at 100% or more, it leads me to believe the receiver is not being overdriven. Will a distribution amp help with this?
I think the next step, is to probably take the DB-8 outside, and see what happens. In the spreadsheet below, the highlighted yellow rows are the channels that I currently even care about having (well, except ABC).