I'll share what I did to fix my Advocate. And mine NEEDED FIXING! I disassembled my ZT220 for cleaning & lubing. I noticed that the bearings in the 220 were quite small as many of the more recent ZT's are. (I don't see the larger ones inset into the blue plastic/nylon washers used as much these days in many of their newer models.) But since I've taken apart my Advocate so many times, hoping & trying to find a way to improve the slow, gritty, totally unsatisfactory action on mine...I wondered if the small bearings on the ZT220 might fit in the Advocate and improve things, even if just a little I'd be happy. I NEEDED to see if they might do anything to help the situation I was SO aggravated about...with my Advocate. So I put the 220's bearings into the Advocate and also
removed the paper thin washers that came in the Advocate...because I also noticed, just by eyeballing them, the bearings from the ZT were just a tiny bit thicker than the bearings that come in the Advocate. I hoped that the final thickness might come close to matching by removing the washers & just letting the ZT220 bearings ride directly on the Advocate's ti bearing races (that would just become "work hardened" if/when a track developed, again, assuming this little experiment even
worked) --- But then I decided to take one additional step. I whipped out the old trusty Dremel and polished the bearing races in the Advocate. So with the races meticulously mirror polished, the original Advocate washers & bearings removed, and using the bearings for the ZT220 and a few tiny drops of Nano Oil in a few "pivotal" locations (pun intended), the action on my Advocate has improved by, oh I'd say, about a thousand percent! Now, granted, it's ridiculous that a customer should have to go through all of that to end up with a knife, as great as the Advocate is it every other respect, that is only now as smooth and as satisfying/enjoyable to open & close (with ball bearing smoothness as it should be, IMHO) as an off the shelf ZT with bearings. Now, finally, I have an Advocate that works as I hoped it would and as it, in my opinion, really
should. After some fine adjustments to lockbar tension and pivot screw adjustments (and a dab of blue Loctite), my lockup is rock solid and at about 50% instead of the original 20%. But it's steel on steel so it is a price I'm happy to pay considering the absolutely HUGE improvement in it's action. I hope this is helpful to anyone still frustrated if they got an Advocate and the action isn't NEAR what they assumed, expected or wanted it to be. I did track down bearings the size of the ones in my ZT220 so I could return those bearings to their rightful place, back in the 220. All is finally, now, right with the world...of my Spyderco Advocate. Mr. Glesser, if you read this and an even better fix comes along, I can only hope my honesty & decision to share this information publicly will not preclude me from that "better" fix via Spyderco. (even though mine's pretty darn good, I must say) Now...I LOVE the knife...and especially its action. But I hope I never have to go through that again with a future Spyderco on bearings. I do love most of your products. -- PS. I'm guessing I've now uber-voided my Spyderco warranty. It's ok. I now have the Advocate I wanted from the beginning.
