I just ordered a set!!!!
I think the accuscreed guy is going to owe groundsx a trip to a very nice, warm tropical place!
Ok,
Here's one of the solutions I've been thinking of for walkways............and perhaps......setting base for retaining walls.
http://www.metalforms.com/ply_flatwork4.html
Check out the curved, plastic forms..........stakes are set BELOW the form.........forms can bend to a 3' radius.............
Think about it.........setting these up, using a "t-cut" board with a 1 inch drop to screed/level out your base, then just running you screed board across the top to set your sand...........
Hell, if the price is two bad, you may be able to just leave them in as edging also! (have to get a price quote first though)
steve