Another one of the "chain" routes, Debaser sits just right of Vitamin H. The rock fall of 1998 supposedly improved the quality of the lower section of Debaser. With its large roof at 2/3 height, Debaser involves a little more power than some of the other Arsenal routes. But the difficulties don't stop after the roof so keep punching it to the anchors. Oh, and leave your knee-pad at home because it won't be of much use on this one (I did get a nice butt-scum at one point. I may have to develop rubber C-4 underwear).
P.S.: You can traverse left at the large roof onto Vitamin H to climb a variation called Vitamin D (12d).
Adam, that other Christopher Lee ain't me. I finally signed on as Dr. Chris Lee. I toyed with The Real Chris Lee but didn't want to upset my co-named reviewer :)