Yep, although I only use Common Lisp, this is still readable to me. A couple of things could be improved for me; I almost never use abbreviated variable names

Yep, although I only use Common Lisp, this is still readable to me. A couple of things could be improved for me; I almost never use abbreviated variable names unless it's for simple iteration. Also things like this being repeated on 8 lines, just screams for some sort of abstraction: (set! rsc (+ rsc 3)) (set! rsc (+ rsc 0))) (set! rsc (+ rsc 0))