Yeah at 9 and 7 and 5 signal levels, the receiver is definitely in the beginning stage at the very least being only partially able to acquire signal, which can cause bad pixelation.
Again, what matters most, is how clear the signal is on a clear day IMO. Great to hear that a tech will be fixing you up. I recently had a signal issue and they fixed me up great!
However, even with an optimally-peaked dish there are still (smaller) chances of "rain fade" during even light showers, but it is rare. Again, what matters most, is where those huge thunderclouds are. Particularly, if you check the radar on the computer, or wherever you get your weather radar from, take note of where the red areas are. If you're on western arc any red southwest has a potential for taking out your signal. For eastern arc, anything south-southeast in red can affect signal. Peaking/replacing the dish will definitely make the chances of interruption slimmer.