I now have an 1895 marriage certificate for JJS in which he gives his rank as "Conductor" - so by by 1895 he is out of the Army.
Being born in 1868, I guess that he would not have joined the Army much before about 1883, so it looks like his Army career lasted 12 years at the most
Having signed on what would be a typical period to sign on for?
Does service of less than 12 years suggest that he was discharged or invalided out?
Would the West Surreys have been posted abroad period 1883 -1895?