Mitsubishi has introduced new shafts, including the Diamana BF-Series and ZF profiles, to its lineup. The company's shaft offerings are being reviewed and compared by various outlets, with some focusing on specific models such as the BF-Series, ZF, and RF. It appears that Mitsubishi's shafts are being used in professional golf tournaments, but the exact models and their performance are being evaluated and reported on by different sources.