Doing this for a friend, I've personally got a pair of the Tour Ultras and love em.  My friend is getting back into bowling again after taking a couple years off.  He currently has a pair of dexter sst6s which after about a year and a half of use, have literally fallen apart (go figure, same thing happened to me and about 5 other friends but anyway...)  He's got the sole he usually uses superglued to the shoe, same with the heel, and he's actually got a sock he uses to slide with now.  He wants to use one of the dynothane shoes,  he's looking at the Sport Ultra's because their cheaper.  But Wants to know what all differences there are between the 2.  I don't know which model he's looking at so I can't help much there.  He figures he doesn't need the cleat sole which comes with the tour ultra's.  and he thinks that the synthetic leather sole with the leather heel will work well for him.  So anyway, any info on the differences would be nice.  And just for the record.  I did look at the dynothane website, and either I just didn't understand it or It just didn't have what I wanted

Thanks,
Jeremy

PS one of his main worries is about comfort if anybody has used both and could compare one to the other it'd be nice
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"If you compare yourself with others,
you may become vain and bitter;
for always there will be greater and lesser persons than yourself.
Enjoy your achievements as well as your plans."

Taken from Desiderata

Proud user of Columbia 300 and Visionary Bowling Products

Not much difference other than material and a couple of accessories.
I got the Tour Ultras Black because at the time I didn't care for the looks of the Sport series designs available.

           Tour           Sport
Leather  Kangaroo          Cow
Heels    Backskin        Backskin
        Flat Hard      Flat Normal
         Grooved         Grooved
         Rippled         Rippled
Soles    Backskin       Backskin
          Oiled          Oiled
         Deerskin       Deerskin 
      Chrome Leather  Chrome Leather 
          Cleat       
Access  Shoe Cover      Shoe Cover
       Form Keepers    Form Keepers
        Shoe Horn  
        Shoe Bags
       Cleat Pick

Of the extras that come with the Tours:
I use one of the shoe bags to hold the heels/soles the other bag sits at home.
Never used the shoe horn.
I use the cleat sole and pick quite often.

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