I am considering the 0560/561 - but wonder why, as I am not so fond of AO knives, even if I do have a ZT-0301 and love it! It opens 'politely', a benefit. I'll check out the 560/561 when it becomes available locally. Now - about perceived quality - and possible duplication.
I have three ZTs - the mentioned 0301 and a pair of 0551s. My most expensive knife is a StarTac Umnumzaan, with my other CR folder, a small plain S35VN Sebbie, as my next most expensive knife. I also have had access to a few Hinderers. I am sorry - I know the Hinderers must be better - that much more moola has to buy something - but, the 0551 is a hard act to follow. It is very similar to the 'zaan, too. If I hadn't bought the 'zaan to commemorate an important event in my life, I certainly wouldn't spend that much on it now - not when an 0551, an 0301, and the nicest Vic SAK I have would sum to the same amount. It's all in perceived value. My 0551 is a hard act to follow. Of course, it is not an Umnumzaan in it's build quality - but it isn't far off, either. I expect to be similarly impressed with the 560/561 when I get to fondle them locally. Of course, I am easily amused... I had a chili dog and some diet pop for dinner last night.
Stainz