i could very well be wrong, but are you confusing two terms here?
rise is measured from the top of the waist and down, clap is talking about a higher waist, as in the waist extending up his torso further. additional rise would more likely just make the crotch lower, which clap does not need, not make the waist sit higher.
maybe just semantics, idk.
anyways, clap, i hate you. you have nice hair, and a great build. go hit yourself in the face with a rusty drainpipe.