I used 2 sheets of Nittaku Pro 3 Turbo blue, after using H3 in several hardness (both neo and not).
Nittaku Pro 3 Turbo blue is very hard, significantly harder than H3 41, and also very heavy; of the 2 sheets I tried one was 59-60 grams cut and the other 57 grams cut.
Positives: when new it has...