You're welcome. That configuration makes it even harder because it's just so classic and formal. A 6/1 configuration seems more popular these days. Anyway, I'm glad you found another use.
There is one thing though: maybe you should just wear it more as a suit! You have the slim figure to carry off the DB, and a PoW suit is awesome. So just wear it more! If you want to be a little more contemporary, then the full suit can be fine with tan or brown leather or suede shoes to give a less formal look - the knitted tie you've got there would fit into that look too, and the unusual patch pockets also make it a bit more casual.
So maybe that's your answer: stop trying to do weird things with the jacket, and rock that suit as hard as you can - even if you're just going for coffee. Isn't that what classic menswear is all about?!