By the way, I am making that judgement based on the fact that you say the NSO is All+ to Off-. Did I get that right?
The Darker blade I would try is 7P-2A. That should be Off- or on the slow side of regular Off, and have very good...
# WS-Final: FUKUHARA Ai - JEON Jihee ^ [HD] [Full Match/Chinese]
# MS-Final: YOSHIMURA Maharu - WONG Chun Ting [HD] [Full Match/Chinese]