Sweet scenting. When I have to expand my seconds I know something's up cause I'm rarely even one second off.
Here's the seed information:
http://postimage.org/image/d9mi9o5sx/
Here's additional information I record:
http://postimage.org/image/qozvodswn/
My EonTimer is on a target second of 5, a target delay of 5375, and I'm using a calibrated delay of 432 which I have been relatively successful with. For the record, I tried hitting this seed with a different time yesterday and hit the same seed four times (not the same as the one in the spreadsheet), but it wasn't found either. I was too lazy/tired to make a spreadsheet for that one.
I'm not sure what the problem is exactly, but what I would do is either catch/KO your roamers or remove their locations from Seed to Time and try again.