I posted a week or so ago about 4 ball bags, but I think I'm
gonna stick w/ the 3 ball rollers and carry a tote from time
to time.  I really like the look of the Storm Rolling Thunder
bags.  They look like they have more storage space compared to
most other 3 ball rollers.  
For those of you who've had one for quite awhile, how durable are
they???  I have to go up and down steps and the weight from 3 balls
is what eventually busted the plastic all around the bottom of my
Ebonite Big Mouth.  Any feedback is appreciated.  Thanks