This a common issue when guys move from the shavette to a traditional SR. The problem isn't with the honing. It's with your technique.

I know you have been using the shavette for awhile and are confident in your technique. However while most of that will transfer to the traditional SR you need to tweak it some.

Try adjusting your angle. That sounds like the biggest issue. You are also going to have to adjust to the length of the blade. Some strokes you learned with the Parker won't woke with traditional SR simple because it is longer and won't fight in the same area.