I apologize for this elementary question, but I'm just getting started with woodworking. I'm working on my first panel glue up - made of 1x6 walnut. I'm wondering how "square" the edges of the planks have to be in order to get a seamless joint. I'm asking because I bought the wood rough sawn and bought a nice track saw to straight-line the edges. I don't have a jointer so I was hoping by buying a nice track saw that I could get joint ready edges off the saw. What I'm seeing is that saw must be riding ever so slightly crooked in the track because when I check the edges of the planks with a combination square, there is a very tiny sliver of light I can see on one side of the edge. It's really a sliver as I have to shine a light behind it to see it. The edge is consistent throughout the length of the board. Is this sort of thing normal and considered to be within the tolerance of a nice track saw? Will planks that are just ever so slightly out of square pull together with clamps?
Since I've never done this before, I'm not sure if I'm being too much of a perfectionist or if there really is cause for concern.
I think this might be happening because the weight of the saw wants to "fall off the edge" on the side of the saw making the cut. I might be able to resolve this by figuring out how to get a more stable base to work from as I was trying to use the garage floor which isn't the easiest to work from.
Thank you for any insight and/or suggestions.