Hey this is a question, I finally purchased the new Ultegra cassette and chain for the season. Should I buy the tools to do it myself or should i take it to the LBS. I mean it's hard to explain to them, hey I bought it off of Ebay cause prices are much cheaper, but if it's too hard then I can. I watched a video on it, but what if something goes wrong, I wouldnt know how to fix it. If i do install them, I have no idea of how much grease i should put on the chain or if I should lube the cassette. So any input is appreciative.