I am most certian you'll find the answers to your questions in HOMEBOY's Guide, Dred.....
and btw.. HOMEBOY shows ya in the guide how to possibly get some longer life use out of a failing HAT...
<----hope you get back to doing this quickly, best of luck to ya, 
Actually looking at the adding an 8 way hat gives me a thought. If all an 8 way hat is, is a 4 way hat rounded off so that themovement of the hat presses two buttons at once then maybe cleaning still is the answer. I didnt remove the hat covers themselves. Just took the stick apart and flooded the area.
Reason Im thinking this is I can look side to side and straight back fine. I just cant look back left or right.
If I take the hat covers off themselves I may be able to see why its not working, Maybe debris built up in those two corners preventing the double press.
Just a thought.
It hasnt kept me from flying. I've lived with this for a few weeks now. And in fact I plan on upping in a few minutes. But it has made Good SA more difficult.
thanks for the wishes <S>