In your opinion or experience what is the best holster that is convert-able from IWB to OWB and can be used with a Ruger EC9S

I'm looking to add a Ruger EC9S for carry just to switch out from my M&P Shield 2.0 (which I only carry IWB) but I figured if I'm going to add another carry pistol I might as well add more value by having the option to carry IWB or OWB and possibly appendix, (I currently only carry at 4 o'clock) so instead of buying another 2 or 3 holsters for a gun a I probably won't carry as often I was wondering if there is a holster that is some what of an all in one, that still comes highly recommended and is still comfortable and discrete. via /r/CCW https://ift.tt/34vZAHJ