Pow_22

Got my Optima flats on my old Jazz, Smooth 

"Who says flats cant go on a jazz!?!"  no-one. it's an urban legend - just like saying a swan will break your arm. No documented evidence anywhere (swans or flats)

From the inception of the Jazz Bass in 1960 until the mid 1970s, Fender fitted flatwound strings as standard.

Jazz Bass with flatwounds and a plectrum, was a very common sound throughout the 1960s and 70s.

If someone doesn't like it then that's their business, but to say it can't be done is stupid.