That was my experience, also...and it is why I advocate another approach.  The first mile I just wanted to get off and leave it beside the road.  The next five miles I thought we had made the biggest mistakes of our lives.  It took 15 miles before I felt the least bit comfortable...and I was still far too tentantive to react properly in an emergency.  Takes a couple of hundred miles before you get comfortable with it...or more.  Be sure to remind yourself constantly to relax your grip and not fight it.
 
If I knew then what I know now, I would have stopped at the first big, empty parking lot I could find, and played around for 15-20 minutes before I hit the road for home.  If I had been real smart, I would have 
downloaded the manual from the SpyderLovers home page or from the BRP 
Spyder Owners Center, and I would have studied it up front, especially the skills section.  I would also have watched the safety videos on YouTube.  Then I would have known better what to expect.