It's not that we don't like answering your questions.

If you have a book and can read up a little, and look at the diagrams and pictures, the answers you get here will make more sense, you might not have to ask the question in the first place, and if you do go to an LBS, you'll have a lot better chance of not being ripped off, by being a knowledgeable consumer.

The more you know about any activity, the better off you are, and it's helpful to have more than one source of information. That helps you to filter out the good info from the bad.