Nitro,
I use steel rockers for the same reason you do. I bought Comp Steel rockers recently, but haven't used them yet. Like you say, the adjuster has been changed to accept a ball/ball pushrod. A good thing as far as I am concerned because you have more pushrod choices. I will be using 7/16" diam prods.
Also using the TF 240 heads. These rockers/head combo will need a 0.020" shim under the shaft to get the geometry I want.