I need to get a few backups for my six one 95 blx's that i have. I noticed the price on the k factor version is really cheap and would rather pay that than $150 or get the new version for $199. I was wondering if their are any big differences between the K Factor version and the BLX version. The only thing i have against my BLX's is that the feel is more dampened than i would like. I use RPM Blast 17g @ 57 lbs. Its my favorite string and I dont plan on switching. Thanks for your advice!!!!