It depends howe long your sample is and how big the zone is, the smaller the zone the less time it takes, so I tend to use it for drums, whatever the longest section of the sample is, that's what I keep there and then zone out the smaller bits I want.
When you go to the .100 silent sample, the zone should have the same start and end point automatically (.100) if you paste it to the zone start (same point as zone end, 100) it takes a long time like that, almost a minute. But if you do zone end (also .100) it is much quicker.
I'll try longerzones and see what happens. it isn't a quick process, but it is very flexible, you can combine samples, delete clicks from samples, reverse sections of samples, copy a part of a sample and paste it a bunch of times at the end then decay it for a sustain/release loop type thing.
You can also easily audition the part before the zone and after the zone with the play X button, they really went all out.
But the time issue is with the 60's processor and memory, if you got a bunch of sounds in the memory then it will take longer, when you got only a few short samples then it is quicker.
I take 2 or 3 second samples when I chop, then I zoom the zone in like I'm trimming the sample, then paste it and all I gotta do it delete the first .100 at the beginning and set the soft start and end points.
at it's worst it takes about a minute, but it can feel like forever, sometimes it takes a while and you just gotta leave it alone, also you gotta make sure that where you are pasting is right in the zone field, I had an error once where I had the zones at zero and I pasted something and the machine stayed pasting for too long so I shut down, I consider that a crash, but I did something stupid, that's why it happened, can't remember exactly what it is.
be patient, it can really give good results. Another good thing is if you set the zone to how you want it but don't have a silent sample to paste to, you can go sample it and then go back to the sample edit screen and your zone stays how you set it unless you switch sounds in the edit screen.