Hi,
The best way I have to explain the difference between "within" and "after" is within includes the check, whereas after has to be explicitly after...
This is easier to explain using Visits...
X THEN Within 1 Visit Y
vs
X THEN After 1 Visit Y
The first example means that Y has to happen within the same Visit... and the second would have to happen in the next Visit (X happens in Visit 1, and Y happens in the next Visit)
If the Within or After is 2 or more... then the Within includes the current visit, and the After will look at the visits not including the current.
So, now when we look at your segments looking at PVs, I think a similar logic applies... but since you likely aren't looking at same PV using within or after logic, I don't think the current PV would be included... but I think that within will look at the next immediate PV, whereas After has a PV buffer? After 1 PV, I believe means that it's looking for Page A, then some page, then Page Exists... so it's actually a 3 page scenario, as opposed to within which would be a 2 page scenario...
I also want to note, that your segments are all VISIT scope, but your exclusions are only excluding the HITS... I think this is probably not the logic you likely want...
I would think you might want to look at segments that look more like:
HIT [
Page equals a
AND
Exclude VISIT container [
Page equals a
THEN
Page exists
]
]
Basically, get back the Hits to your Page A, and exclude the Visits that have Pages that follow that page... This will get you a more accurate "Visit" count... as you will be excluding the Visits that match this scenario (not just excluding some of the pages)
