Yes, daniel, it is a good idea to let coaches know where they can see you play. It sounds like you have already been sending what I referred to as a personal letter. I have seen players just mail back profiles, which I don't think is very personal or often provides enough information. My suggestion was to attach a one page letter that is addressed to the coach by name, refers to the school and the baseball program by name, a brief statement as to why you are interested in their program, and a short list of where they can see you play. Hope this helps. Good luck with your recruiting!