steps to repro:

• create an asNavFor setup with a lot of thumbnails (enough that it'll be scrollable)
• use the touch option on that asNavFor slider
• swipe the navigating slider to reveal more thumbs

expected behavior (debatable UX question, sure, but this is coming from multiple customer complaints and it feels wonky to everyone I've shown it to):

• thumbnail gallery advances based on your swipe but main slider doesn't change

actual behavior:

• main slider advances to whatever thumbnail you touched when you started the swipe

We've worked around this in our company's fork by adding a "swiping" flag during swipes and checking for it in the asNav method; it's been pretty well-tested across browsers. Will submit a pull request later with this tweak in case you want it upstream.