Question...

I know that for some, sole tickling with a feather is a waste of time. My question is, how is it with nylons on?
I haven't been tickled with nylons on, but I can understand how that would tickle.
I just can't imagine that being foot tickled with a feather AND nylons on would make much of an impact.

Am I wrong?

Tickling soles with a feather isn't a "waste of time". It works just fine, just not going to get an explosive reaction from it.

I'd assume tickling a nylon foot with a feather would be as effective as tickling a socked foot with a feather, which means not at all.