'Sch' as 'sh' makes more sense to me. 'Sch' isn't used in English much, that I can think of, other than in 'school'. I'm used to hearing 'sch' pronounced as 'sh' in German (my stepmother is German and her, my Dad and younger sister live in Switzerland), which seems to use 'sch' more often than English. 'SHED-ule' sounds a lot better to me than 'SKED-ule'.