this link contains the same 2 pics but ive labelled the different limbs to make it easier to refer to the different limbs http://s189.photobucket.com/albums/z285/lycheeluva/?albumview=link&special_track=nav_album_album Here is a link that might be useful: pics with labels

The site below describes typical clusters as often "over a pound". I imagine that 7-pound compound clusters might be possible. My Mom had a vine and I don't remember it as having huge clusters. It often didn't ripen in her Zone 5/6 garden. It is a slip-skin grape (like a Concord) with seeds. Grapes are large. It has a combination of Muscat and American grape flavors that some people describe as resembling citrus. When not fully ripe or ripened in cool weather it's kind of sour. As a hybrid between American and European species, it has some disease resistance not found in the typical European grapes, making it a favorite for overhead arbors in certain climates, though pruning to three bud spurs on cordons is recommended for highest production. Here is a link that might be useful: http://www.homeorchardsociety.org/article/38/

Here is a recent photo of my Alden Grape. Here is a link that might be useful:

Zone 6 Is a great zone for growing grapes. Best bet to check your local nurseries. I planted a Niagara grape and an Earlyblu this spring. The Niagara is taking off in my Quebec garden. The Earlyblu not so much, but it was rootstock, whereas the Niagara already had leaves on it.