with the step setup I have (club step and 4 risers, and/or a wooden step DH made at 12") I can do either 12" or 16", but not 14. I tried ME again on 16", used just the 10 pound plate and it was a bit easier the second time, I think I was just so shocked the first time it felt harder than it was. I will keep using 16", I think, for this one but I definitely only use 12" on PLB and other heavy work (PS for example).
Christine