Well the way I saw it with Shen is you hit them with st.C, f+B, HD, st.C, f+B (qcf+D, HDC qcf+A)xN. Then they either have to get guard broken or GCCD/GCAB. After that if they block another move you can pretty much go back into the qcf+D HDC qcf+A loop forcing them to burn another meter. The only thing I'm not sure of is the guard crush potential for Shen so I'll do some testing tomorrow.
There definitely are other ways to get meter but I'm all for the slightly out there options that aren't seen often. I'd say getting any anchor to burn 2-3 meters OR take 50% is a very scary thing for your opponent.