Sometimes the simple method is the best.
If you were to measure tone hole openings "venting capability" value for dollar the pieces displayed above by two members would more than suffice, if you were to approach this in an engineering perspective where you needed an exact measurement which could be repeatable and digitally displayed, then this could also be achieved but would involve quite a labour intensive build to create, but do-able.
If you were to measure tone hole openings "venting capability" value for dollar the pieces displayed above by two members would more than suffice, if you were to approach this in an engineering perspective where you needed an exact measurement which could be repeatable and digitally displayed, then this could also be achieved but would involve quite a labour intensive build to create, but do-able.