Any Nording Grade Experts Here?

[shanez]

As near as I can tell, Nording pipes are graded from1 to 20 with 1 being the lowest and 20 being the highest. There are also some that have letter grading but are those strictly the SON ones or is it used for others?

Are there any other grading systems used?

 

[workman]

I'm no expert, but I've noticed different gradings for different series. The Valhalla series has some basic pipes and then the grades go up by hundreds, from 100 to 600.
There is a CUT series that goes up alphabetically, A-CUT, B-CUT etc.