After playing around with hooks and small diamonds with zero results, I gave up and ordered a set of Souber dimple picks. My big break came when I decided to use my Rai bogota set while waiting for the package to arrive. The single hump works perfectly and I hit open in less than five minutes! Another testament to how versatile Rai's tools are. I have since received my dimple kit and managed to open it a few more times.
