um, i’m not sure how you get 7 lk’s in there for your second string. unless your talking about running or walking into lk’s, which is too dangerous most of the time.
cr.short, cr.jab, st.short, hcf+lk. should be his most used string. the hcf+k does ridiculous stun.
or you can cr.jab, st.fierce, hcf+lk. that does a decent amount as well.
U can walk with the s.lk, ken has a frame advantage after them, so he can do whatever he wants. so basically u do walking lk’s and after a while your opponent tries to hit you, but since kens s.lk’s are so fast u end up getting counter hits every time your opponent tries to jab, or c.fierce (with sagat or blanka). the s.lk’s r used mostly for pressure and do a decent amount of guard damage