the distance numbers are rounded a bit. I think 60 miles will always fall into the "local recruit" and be receptive of your efforts.
I've seen a few different results with those listed at 70. Sometimes they're local, and sometimes they're not.
The same rounding takes place for recruiting costs. Sometimes a recruit 360 miles away will cost about $450 for a home visit and sometimes a recruit also listed at 360 will cost closer to $750. It depends on whether it was 358 miles and rounded up, or 362 and rounded down.