One last question regarding the tip design. The flat angled tip (Tango) is better for wider vibration area? -vs- The (Salsa) more pinpoint style pattern. Would this be accurate?
That's definitely accurate. It was the whole deciding factor on why I got the Tango. I have only used it a handful of times, only recharged it once. I haven't noticed an issue but that could just be from lack of use.
I received this last Friday and I had to send it back (waiting for it to come back into stock to get the new one though). Mine wouldn't charge at all! I'm not sure if it was defective or damaged in transit. So I can't comment on whether or not an undamaged one will hold a charge, sorry. But I'll have more info when I get my replacement. But I can say that the rep who handled my Support Ticket said that he never had to do a return on one before because these are from a very nice product line (and very popular). Sorry I couldn't be of more help.