I like both......
The reason I like the wide nozzle's for some things are, tight areas where you can't get a full nozzle in. For instance organ pedals.....
If I ever buy another Sanitaire, I will get the wide track because the 7amp motor is overkill in my opinion and this should bring down the suction to some degree.
I absolutely prefer the Aerus/Electrolux L shaped power nozzles over all but the new E-2 Rainbow power nozzle with the side brushes.
PR-21