jCarouselLite beforeStart .stop ?

jCarouselLite beforeStart .stop ?

I am using  http://www.gmarwaha.com/jquery/jcarousellite/ with Non-image Content with 1 visible item to make a survey.

In the beforeStart, I do some validation, and I would like to abort the animation if it fails validation.  A sweet "return false" from beforeStart was what I was expecting in the hopes to not even execute afterEnd.

I initialize with anyClass
$(". anyClass").jCarouselLite({
...
beforeStart: function( b, direction){
...
If .stop( [clearQueue ] [, jumpToEnd ] ) is the way, how do I use it?
These don't work:
$(". anyClass").stop(true,false)
$(b).stop(true,false ) ?