[Byron]

When you refer to split-sided is that to mean properly split so that
the separate leg seams only come together at the waist band ? I ask as I have seen shorts
described as "split" when I would only say "notched" - ie giving just a little extra girth at the upper thigh.
Your old favourites were previously described as split sided speedos and I know just what
you mean, with front and rear fabric having slight leftside and rightside overlaps.
I thought there might be an illustration somewhere on the internet but no luck in finding that design so far.