I did a little searching but thought i would throw my question out directly. I am getting my first Ts55 in a couple of weeks when it comes in, but am still un decided on the rails. The 75 seems like a good versitile length the 55 seems like i would wish it was a little longer lots. The first job i have for it will have angle cuts on sheets, approx. 58" and I could see 68" cuts being common for me. I like the idea of not having to join rails all the time so i can see getting a 3000. Thinking about getting the 75 and either a 42 or55 and connectors to start. Would the 75 seem to long on a 4' cut? would a 55 start to seem to long on a 16"-3' cut, or for use with my router? Thoughts would be appreciated.