sorry to confuse everyone w highly technical language, but I'm not sure I've ever seen a guy who does that as effectively as he does.
Reminds me of a conversation I overheard at my high school walking down one of the halls: one of our star basketball players was about 6'8 165 and played center for us (he later had a really good college career at UC Davis). Super skilled shooter, but got pushed around because he was skin and bones.
When we were juniors walked past him and an English teacher consulting between classes, teacher was a former basketball coach and heard the teacher saying with emphasis "you gotta get a butt man, you HAVE to get a butt."
Always thought that was an amusing piece of advice, but DH gets it.