I think my instant notification is set at 50 miles, which is really too far in today's geocaching world. I set it up years ago (2003 or 2004) and haven't touched it since then. Back when I set it up, there weren't that many caches coming out in the state and I was excited to see a new one crop up 30, 35, 40, 45, or even 50 miles away. And if I had the opportunity, I would go after it to see if I could grab a FTF. I remember getting one high up on the Pig Trail on Halloween Day several years ago! I have also driven to Little Rock or Jasper to snag a FTF. But, alas, those days are gone. With several avid geocaching communities in the state, newly published caches are usually found within hours, and sometime within minutes, of being published.
However, there are some exceptions. Just two days ago, I got a FTF in Jacksonport State Park,over 100 miles from my home. I went to the park to get the ParkCache and remembered that there was a new cache there, so I found it also. I was surprised to be the FTF on that one, because it had been out for about 6 days. (Note that a new one was just published there last night, so if anyone in that area wants a FTF, it's waiting on you!)
My farthest FTF from home is one I got in South Carolina, again many years ago. I was planning a trip to visit some relatives and noticed that one had just been published not too far off my route through the state. So a couple of days later, as I passed through the area, I stopped to find the cache. I was surprised to find a blank logsheet! When I logged my find online, I was further surprised that other local cachers had looked for it and hadn't found it! I'm sure they didn't appreciate an Arkansas cacher grabbing an FTF from under their noses!
"Wildness is a necessity." -- John Muir
"When you go to hide a geocache, think of the reason you are bringing people to that spot. If the only reason is for the geocache, then find a better spot." – briansnat