"And in case there was any confusion as to what I was referring to as 'second skin', this is it. Basically, it's something akin to painting a bathing suit on a Sports Illustrated model. If you make boots, the toenails show through. Gloves, the same thing. And no way to hide the ears on a cowl. There are workarounds for these things, of course. But it's time consuming and tedious, and for me, it's easier just to learn to model.

In this very quick, very sloppy example, the lightning bolt on his chest is the same one I used for my Green Lightning shield."

Yes I've noticed this before in second skins and I'm not happy about it.  There are products that list the second skin leg bottoms as boots.  I thought there were was perhaps a morph that would let you turn feet into socks.  It doesn't.  In the end you must texture boots to match the model or find a suitable texture.