Thanks. I got it to work by creating a new var do track whether the panel is being dragged (true in Drag(), false in Press() if the user stopped pressing) and substituted the mTouches check by a mDragging check. I have no idea about what side effects that'll have on panels of a different type...
Could you please incorporate this feature into one of the next releases? It seems like a good behaviour for scroll bars that only appear when dragging.
BR,
Alex