I got this hold because it reminded me of the old Pusher Boss hold from the 90's. On the convex side, there are several different ways to catch the divits and thumb catches. I set mine on a 30° home wall and it can be pretty positive depending on the orientation. Pulling straight down on it seems to be the most positive. The concave side is really bad! No divits or anything and works well on the vertical part of my wall. It can be pretty technical for such a large hold and used on a variety of angles. I would like to get more in this series.