Do you know that your hone is flat? Why not use a True Bar?
I have a true bar, ski size, seen here:
http://www.tognar.com/Photos/spk-tb.jpg
They are relatively cheap and available at this location as well as others;
Ski Snowboard Base Flattening structuring Tools
I just retrieved mine from our ski trailer and used it yesterday to evaluate a couple balsa pasted stops that I made. Interestingly the balsa was flat before I pasted it and after drying over niight was no longer flat. Very apparent with the true bar. I lapped with paper on a flat surface and repasted. Will see tonight whether the wood has maintained. A little off the topic but just wondering if the oil that I mixed the cr ox with and the liquid in the diamond pastes could have warped the balsa?
Anyway, thought that I would pass this idea of the True bar along. No sense lapping a flat hone.
Mark