I believe Rip suggests somewhere (in the book?) that if you miss a set, try again up to three times before resetting. Depending on how this goes, you may want to consider moving up smaller increments so you are not constantly getting stuck.
Yes, but microloading probably won't be necessary until you get close to the weight you reset. The idea of the reset is to give yourself some additional recovery time.
Have you tried the alternate grip?
It sounds like you have some mileage to go on your current program.