They both take the same catcher which is the same as the VC-Mustangs had.If you look in the sales brochure you can see that they didn't have the thumb release button for the catcher,but I have never ever seen one that didn't have them.Even in the green-book it has the thumb release button.So I'm not sure as to whether the catchers in the sales brochure were just for show or not,strange how they did that.As it made me think at one time they were different to others,but there not different.
As far as the sound goes I haven't noticed anything different to any other 125 series 70's full crank engine.They all do pop and fart (So to speak) but nothing really different.I guess if one was to listen close they are different sounding than a 160cc.
Oh yes they both have white taps and no I didn't put them on.They both had them.Although both them when they arrived the taps were so dirty I thought they had black ones on.Then when I started cleaning I was surprised. BONUS!!! I thought.