You are correct on #1. For #3, you would hope that if you ever had to, that there is a similarly sized to a normal o-ring. Leave it alone (outside of lubing it) until it finally breaks. Who knows you might never have that happen. If it does, take it to ACE and see what fits and if it's in between get some high and some low and see what is the most reliable.
>>> Link to prototype Dust Devil
Originally Posted by Mar
I really like the picture posts, because I don't understand most of the word posts.