I thought I'd close this thread out since I've completed this project. /w3tcompact/icons/smile.gif Even got a, "The ring looks nice, did you use a rake?" compliment from the site supervisor, aka, wife. (No, I did not use a rake. The only time I got off the tractor was if I saw a stone or clump of something that needed removed.) We ended up ordering the second delivery of 22 tons and a third of 9 tons in order to completely cover the ring surface. Since the cost per ton included the delivery charge, getting 2 deliveries didn't cost any more than one delivery.
So, for the past 2 Saturdays, I've been spreading stone. I did find out that the stone is called 'Washed Limestone Sand' in our area. Only one of the two local stone suppliers handles it and only at one of their quarries. When my wife called about it, they asked what she was going to use it for. When she replied horse riding ring, they said, "OK, just wanted to be sure."
The 22 ton load had to be delivered in a triaxle dump truck, for the 9 tons, a single axle dump truck was used. In each case, the trucks could get into our ring and they dumped the stone while moving, so they saved me having to relocate it with the FEL, although both drivers left a pile of stone where they emptied the bed. I used the rear blade to spread out the pile, but the rear blade, even with the skid shoes I bought, didn't work well for distributing the stone. With the skid shoes fully extended, they were not far enough beneath the lower edge of the blade to leave an inch of stone behind. Perhaps I didn't have the blade at the right angle?
While the dump truck driver laid a nice path of new stone, it was too thick. Fortunately, they both laid their path across the short side of the ring. I used the FEL for distributing this path. I tilted the bucket so the front edge was slightly lower than the back edge. Then lowered the FEL until I thought the edge was about an inch above the original ring surface and begin back dragging. I kept an eye on the edge of the bucket to be sure I was still dragging the new stone. When there was no more stone to be distributed, I drove back to the starting point, moving a tractor width over. I repeated this across the entire ring width. Once I had all the stone distributed, I used the same procedure except I put the bucket in float. I went back and forth until there were no more ridges left by the bucket.
The feedback from those who have ridden on the ring when it was half covered was the new stone was much softer than the underlying surface we covered over. So, the 'customer' is happy. Next spring and summer we'll see if the claim that weeds don't grow as well in this stone are true. /w3tcompact/icons/eyes.gif