You don't really know what's going on in the VHF spectrum, because to date you haven't looked at it. I would get working on looking at the spectrum as discussed here.
The questions you wanna answer by looking at the spectrum... what is the noise floor doing? IS the signal buried in the noise, or is the signal above the noise and still not decoding?
When my VHF yagi was in the other position, it was definitely a lack of strength.
The same move a few feet one way or the other can get you out of multipath as well in some cases.
Yes Jorgek, the eave mount install WAS a little tricky to do despite 3 people,
"me, myself and I".
DB8E/VHF Yagi rotor FM Bandstop ap-8700 preamp 8way split LG lcd.