i think Product of Valley is on all the tables up to the Grey and the 30th was the first grey and the last table to have Product of Valley which is why you can use that to tell that it is a 30th and not some other Grey
you did exactly right and got a smokin good deal on a table...you will never be disappointed you waited and paid a little more
Tornado was careful when they made their changes, which I highly commend them for, by making sure all previous tables could be upgraded with the changes as well...very smart and thoughtful of them so as the comebackid is saying, you can make any previous coin op the same as the current T3000
the only exception is the playing surface but the differences in these over the years isn't enough to keep you from being ready to play on the current table
i have said this before and but the new bearings really do a lot for how the table plays...they were just designed to keep the ball from going behind the man on the wall but some how, they also improve play and not just a little bit, the change is remarkable
anyway, great job, good luck, and keep up with the forum and let us know how your foosball interests are coming along...
bbt