Recently I attempted to burnish a burr on a round scraper I had just sharpened on a 600 grit diamond Tormek wheel. The angle I use is approximately 70 degrees. I found that the burr, after burnishing it, wasn't as effective as the burr I got after merely sharpening on the Tormek. This leads me to assume I'm doing something wrong when burnishing.

Questions -

1. When burnishing, should your hand holding the burnisher be toward the beveled part of the scraper or the flat side?
2. Is there angle to use as a goal to get an optimum burr?