I actually haven't had much of a problem with my Tango losing power with pressure, but I did notice that a lot more with the Touch, since it has a flexible tip. The Touch also feels slightly less powerful to me than the Tango, but that may be more due to the flexibility and shape. They have the same deep, rumbly vibrations, and probably use the same motor, but the Touch doesn't conduct vibrations quite as well. They are close in power though, so the most important difference is the shape. Salsa/Tango are better if you like direct stimulation, and the Touch is great if you like indirect stimulation since it can cup the clitoris.