title: How to stop "bounce back" in kivy ScrollEffect?
body: <p>I have a long list of items that won't fit into the screen.  I want to be able to scroll through them, and NOT have the scroll bounce-back to the top when I release the mouse button.</p>
  <p>I have looked into a number of potential solutions on this in this forum.  They all revolve around using effect_cls = 'ScrollEffect'.  But, that seems to prevent the screen from scrolling at all.</p>
  <p>When I allow the default behavior (&quot;DampedScroll&quot;), it scrolls . . but then bounces back to the top.</p>
  <p>When I set effect_cls = 'ScrollEffect', it doesn't allow scrolling at all.</p>
  <p>There's some reference to being able to subclass the ScrollEffect and play with the parameters . . but I've not had any success with that.</p>
  <p>Anyone out there had any better luck?</p>
  <p>Thanks!
  Mike</p>