So far so good, but like you I worry about new ideas, (I'm really not sure who actually came up with this idea, and how long ago it started) the peened pins have a 200 + year history and we know they work... They also have their problems ie: bent pins... but even then, they still hold... I sold the Freddy this morning and put a guarantee with the razor, that if these Micro-fastener sets happen to not work like we are all hoping they will, that I would replace them with tried and true brass pins and washers no charge....
Only time will tell!!!!