I use it on almost everything. If you want to catch a HIT that you just missed, you could set an autorefresher on the panda link and maybe catch it when it pops up again or someone returns it. You'd be surprised at how often that works. Or, if you're working a batch, you can set an autorefresher on the panda and work out of your queue. That keeps your queue full while you work, so when the batch dies, you'll still have 25 more HITs that you can do.but when would I use that?