Absolutely constructive criticism is what I'm looking for that is why I ask! I want to do the best job possible and learn the most that I can!. Thanks a bunch for your input. I'm so scared to get to get to close to the seat I kept my distance on purpose to not make a critical mistake. On the 2nd head I got awful close to the seat while inserting my dremal i think it will be ok. I will work on it some more. One question on the seat there is like 3 different angles there which one is considered the actual seat? I'm assuming it's the middle one.