@Daas, ok, glad that we are on the same page. I may have sharpened this issue too much to get my point across. I do ask Orech Chaim shailos when I have them.
@Common – also a fair point. I do ask experts on all of the above. Total probably comes to 5 max per year. This is reasonable. Disclosure: I did try on major appliances with a mixed success, but I learned a lot!