Six months ago I had never owned a Lawn Boy and now I have 4! Is this a great country or what? Considering that 2 of these have electronic ignition, I thought it would be a good idea to pick up a replacement ignition module before mowing season - just in case. I see that after market/foreign made coils get a pretty bad rap. However, I thought I read somewhere that a coat of spar varnish or paint would prevent them from taking moisture and reduce failure. The problem is I don't know where I saw or heard about this. Has anyone had experience/success with this treatment?