Two topics here.
On the subject of "Tickle Talk" the audience seems to be split on this. Some people love to hear and see the effect of verbal teasing. For them it's an important part of the tickling experience.
Others however loath it. The want the Ler to shut up and tickle, and hate it when the lees laughter is blocked by the Ler talking away.
Happily there are a lot of producers out there these days and both sides of the fence are covered in good numbers. So everyone can get their flavor of fun. It can take a bit of looking to find who does the style one likes, but it's out there.
Topic 2:
I'm a fan of seeing a lee loose it enough that thier toes spread out. Such things highlight a true loss of control on the lee's part, and are quite satisfying to those of us who get off on control aspects of tickling.
However toe spreads are an involentary response, and also one that is specific to individuals. Not all (or even most) lees do it. So you won't see it most of the time. And even for lees that do do it, often the Ler is not skilled enough to set it off. So it appears when a happy meeting of the right lee and Ler happens. One has to enjoy it when one finds it. It would be nice to see more, but it cannot be 'ordered up' on desire.
Myriads