Level 9 is .312 Sorry about the wire diams in mm all being the same. I will get that fixed later tonight. I don't like to compare our grippers to anyone elses but I think you guys are on the right track. Most people that have tried the lighter ones feel like they are a little harder than other grippers with the same wire size. The bigger ones feel close to me but I think the GHP's are a little harder. The reality here is that there are only certain wire sizes available to make these torsio