Steve,

As far as down pressure settings, if it is "really wet" usually the first notch is enough, especially on the White, for one rubber + one Curvetine. Sometimes folks just release ALL pressure and leave the lever in the slot.

I would suggest you try a couple rows on the first notch and a couple rows running free in the slot with no spring pressure at all. The tail piece may bounce a bit but may also not pickup the rootballs... I would suspect the first notch is the place to run when it is "really wet" in no till.

In "really wet" and WORKED ground I suspect NO spring pressure will work ok most of the time.

Actually I'm glad to hear there are places in KS that are wet. In Beloit when I was there recently it was as dry as I have ever seen in the central US. 

I checked on the Shoup website and couldn't easily find the rock dam but I am pretty sure they have one.  Here is a link to a similar item from SI Distributing. It should work about the same as the ones I saw. They have a list price of under $10. per row.

http://sidist.com/index.cfm?fuseaction=product.display&product_ID=456&ParentCat=124

The Shoup units I saw on a customers planter mounted more from the ouside than the above picture. Might be worth a call to Shoup on Monday.

I'm glad to hear you like the way the Curvetine closes the slot, even in the worked ground.

Jim at Dawn