Someone named Mickey Beep messaged me after I sent a request to talk to Walt at Latama. He said he will help me out, although he did warn he wouldn't be able to do very much with my switchblades. Oh, and I was mistaken. Latama doesn't mention sharpening/repair services on their site, but someone from another site said they could still help. I was also informed by other people on other forums that even though Latama are the top end makers of switchblades that scuffs, dull blades, and round tip/chipped tips are extremely common, as all blades are handmade. I'm at little disappointed, as they cost so much. I guess I wasn't aware they are basically just items to put in a case to look at. I thought they could be at least used to open letters. As for my friends, they told me they just got lucky and relieved very good models/had some random guy on the internet work on the blades.