Unquestionably Confused wrote:
I suppose he had a perfectly good reason for doing this but somehow it
escapes me at the moment.

Here's a guy who managed to gang two Craftsman table saws together.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=4393374960&category=20 789&ssPageName=WDVW&rd=1

Ebay item #4393374960 if the link fails.

Strange

Not really. Look at the different rip capacities. I've got a buddy who
did pretty much the same thing, but kept the saw with the shortest rip
distance set up for dadoing.