Knitting in Round, space between stitches

I am knitting a stocking in a round with three needles. I have noticed that I have a bigger space between the stitches that meet at the end of each needle. I am knitting my stitch as tight as possible when switching needles at the ends. Any other advise would be appreciated.

When u begin to knit into the 2nd st on the dpn, give it a nice tug, this should be helpful; works wonders for me ;).

I’ve found that if I can get the needles to the first and second needles to touch as I start the first stitch on the second needle, that prevents any gaps.