What evers comfortable for you. I have a shoulder holster for my cz. Cross draw from a shoulder holster will never be as fast as an owb or probably even a iwb. But this isn't a wild west quick draw competition. To me its about comfort and being practical. The reason I bought a PF9 is cause its small and concealable, so don't have to deal with OWB or shoulder holsters. It's so easy to tuck or pocket it.