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cg,

Unfortunately, anyone can drills holes anywhere in the boat so we have no way of knowing what they were intended.

Yes, the Sport models (and others) had an option of the Forward Pedestal Seat like the Striper model had.
Here is the one I had on my Montauk which was an option.
http://www.whalercentral.com/photogal...hoto_id=63

Also see this:
http://www.whalercentral.com/photogal...hoto_id=64

There were lots of different options for different models.
Rear platforms, front platforms, rear seats, etc.