Adjustable ones are MUCH better for me.  I like being able to put in a big
cup like you get from Taco Bell, or Biggie sized Wendy's.  The stock ones
aren't big enough for these cups.  And you can always adjust them back to
coffee cup size if you need to.

Thanks,
Ken Wilford
Van-Again
John 3:16
http://www.vanagain.com
Office: (856)-765-1583
Fax: (856)-327-2242