Slipped stitches should look a little streatched, and may even look like little holes depending on the texture they are knit against. They are, after all, streatching over two rows instead of one, thus needing to be twice as tall. I find that many slipped st. patterns (and many other paterns at that) need some inches on them before they really sort themselves out, then what had looked funky sort of magically becomes normal with the pull and tug of the fabric. Knitting anything super tight will probably land you in more difficulty later on, with the stitches being too bunched and/or the yarn being stretched to a funny quality.
Perhaps with practice, a healthy number of learning experiences (or to some, "mistakes"), some inches knit to see what the heck is going on in the long run they'll sort themselves out?
I definatly want an update