For God's sake, please stop referring to popular production blades that are only around 165 mm as large blades.
These are NOT large blades.
A large blade is 170 mm by 170 mm
A super large blade is 175 mmby 175 mm
Most production blades like Butterfly Matsushita, Butterfly Joo Sae Hyuk are pure garbage in the 40+ plastic ball ONLY era.
How hard i s it to understand this ? The ball size has increased more than 2 mm but larger blades ae not available for defenders from commerical manufacturers.