So just got back from using my PowerFly Holders (along with the Fly-TI steel) for the first time. One thing I didn't realize is that it seems length of the PowerFlys are shorter than the outgoing LS Trigger TUUKs. With my first pair of True SVH Customs, I had to drop down to the 280mm TUUKs to have the holders fit underneath the boot appropriately. With the PowerFlys though, I'm back to a 288mm holder (which is the size I've used for probably 12 of the 13 years of me wearing the stripes). This is alone was worth the "upgrade" in Bauer holders.