“Simply stated, the rules and production for speech and sign are not the same. Signing is fundamentally different than spoken communication in that a completely different set of linguistic units are used. One could suggest that fundamental units of speech are sounds and syllables (Geffer, 1996); however, sign is a visual language that is not bound by the syllable, but rather by distinctive features such as: handshape, location, movement, palm orientation, and non-manual signs (Valli & Lucas, 1992; Stokoe, 1965). Subsequently, it should be no surprise that the characteristics of stuttered speech may not clearly translate into the characteristics of stuttered sign. Instead, the characteristics of the stuttering phenomenon will reflect the modality being expressed. If this latter point is reality, then stuttering secondary to expressive communication is likely to be largely unrecognized and subsequently under-diagnosed in non-oral modalities.” Source: https://www.mnsu.edu/comdis/isad9/papers/snyder9.html From a personal experience, I took sign language in high school and college for the language credits. In hindsight it was easier because I didn’t have to talk BUT I never really use it. Take a functional language like Spanish and stutter proudly through it!