On Thu, Feb 08, 2018 at 08:23:52AM -0500, Gershon Dubin via Mesorah wrote: : If not (they are too different to invoke “al tikri”) why do we find instances of shin/sin such as ruach shtus of a sitar? Shin and sin only differ by niqud. I don't think the issue is accoustical. Tir'u baTov! -Micha