Hello! I recently found a Pilot Custom 74 for sale for a nice price, and it's equipped with a Soft Fine nib. For anyone who has ever had their pens reground by Mr. Pendleton, do you know if it is possible to get a BLS grind from that Soft Fine nib? And if you have such a nib, does it write just as springy and "flexy" (term loosely used) as it originally did, along with its new stub properties?