Well, I have five guide rails. The 1080 that came with the MFT, two 1400 one with the lr32 holes, an 800, and the 3000. I use the 3000 exclusively for breaking down sheet goods or deck edges. The 1400 just general use, the 1080 when I use the MFT but think I would have more use for it off the table, but I am surprised at just how much I use the 800. I have found it is a handy little guide rail for quick work on smaller boards. I have had good luck using the Festool rail connectors to join the 1400 to the 3000. I just bridge the gap between the two with the ts and then tighten it down. So far that has worked well. I have also thought about a second set of connectors so I could really go long on deck edges but wonder if that would be pushing my luck. I am curious about which rails you use the most, why, and which is your favorite. Currently, I really like the little 800 and 1400 but I think my favorite would be the one of the MFT if I pulled it off and had it close at hand.