In my shop nearly always I make 90 degree cuts in sheet material on my beam saw, which gives me a "Festool-Quality" glue-ready edge. I also own a large and accurate slider saw which is very effective for non-90 degree angles.
However, because before I owned those big saws or had a shop with enough space I gained confidence in my Festool guide rails and TS55, often if I am making one-off parts from sheet material involving non-90 degree angles, I use the guide rails on big benches. Those are 4x8 and 4x10 topped with Birch 19mm ply that for some reason was not attractive enough for a job, or was left over from a job. I find the TS55 makes the best quality cuts when the downside of the sheet is against a smooth sacrificial surface. In the shop I use a 3000mm or 1900mm rail for rip and cross cut since space is no problem.
When I work away from my shop I avoid using a table saw, since I am experienced using my TS55 and rails. I seldom transport the longer rails, although they fit on my truck, because it can be difficult getting them inside where needed. I have two of the USA rail bags, so I can protect while carrying a total of 3 1400mm rails a single 1080mm LR32 rail and two sets of connecting bars. Never have I had problems connecting my rails in the field.
