I have had to adjust my timing several times over the last several weeks. When first adjusted to approx 7° btdc, it runs great…for about 4-7 days. I have now run out of room to adjust it further. (Meaning I am against the upper limit of the slot). I’m sitting at about 5 btdc and running a little rough, but I’m sure I will soon be at zero (and then worse) and barely running. Any thoughts on what’s going on here?