Started during SB as well. By the time I catched up with MSQ it's been 4.4, I think.
A friend of mine dragged me along for Byakko Ex kill about a week after I finished with MSQ, and boy, was I not prepared.
By the time ShB got announced I already leveled DRK and was trying to learn it. Also asked for advice on SCH from a different friend, who said "Why do you need an advice, it'll be useless in few months". So I never learned SB SCH properly, but I still miss it. =(