QTR-Quadtone RIP

I'm afraid I jumped the gun last night. While I was getting nice images out using "printer manages color" and QTR for color matching, after printing several new tests this morning, I'm not seeing the effect of any of the curves using this technique. 

That is, regardless of the curve selected for the QTR, the image is identical. So... back to the drawing board.

Sigh.

I tried Adobe Color Print Utility, but it just crashes with error -2582.

I'm afraid right now that using CS5 is the only way I can find to continue using Piezography.

Someone please prove me wrong!  I'd really like to use PS CS6.