One of the hallmarks of good builders is removing the enamel while barely removing any of the valuable power fibres. If you look at a rod closely you will often see areas that are hazy looking or dirty. This is enamel that is still on the strip. As you look critically at your rods you should not see this ghosting. You should see fine pin striping, if the pin striping is large and well defined the builder has gone too deep into the power fibres. The other design criteria you need to establish is whether you want your strip dead flat or do you want to retain the natural curvature of the bamboo, this is a personal choice but if you go dead flat you are forced to remove more power fibers.
Use a loupe to inspect your strips and get rid of those ghosts, after all, "Who you gonna call?"