I honestly don't know. I've owned a 210 Gesshin petty in the past and currently own a 210 Ashi petty, and while I can't do a side by side comparison I feel like the Gesshin was a little stiffer and had better F&F... but that could just be wild nostalgia bias, because I *loved* that Gesshin and can't imagine reality actually living up to my addled memory.That’s very cool! Are they any different from the ashis available from Blueway on EBay? I’m tempted to get a petty-suji just based on that post