Don’t you just hate it when logic and science is introduced into an emotional discussion?
MTH, my son has taken lessons from a Cardinal pitcher who is friends and a cohort of TPM’s son and they worked on stride length a little in conjunction with a lot of other issues, mostly however about staying on line, closed and landing in the same place consistently. I concur (with a lot less knowledge) with Tom House on the stride length and strength. When my son was a scrawny long legged freshmen (fawn like) I used to stress about his stride length, and the coach we were working with looked at me and said “what makes you think his leg strength is going to support that? – relax dad it will lengthen out naturally as he gets bigger and stronger”