I’ve done 2 doortoppers that were about 28” long. I have a Delta 20”. The first one I used straight blades, had to use multiple entrance holes and had to spin it to get it to fit. The main problem was having to step back to spin it, it sometimes got caught on my shirt and made a slight mis-cut. It was also hard to keep your line because you would be standing next to it instead of behind it, what looked straight was actually a slight angle. I ended up turning the saw off until I was positioned right then start again. The second one I used spiral blades and it was much easier. Got pretty good with moving forward, backward, right and left. No issues with the depth. I personally would rather not do a piece like that in pieces. Don’t know if I would be able to glue it together to make it look right. They are fun projects though.