I just wanted to share my experience with decaf home roasting.
I got myself a bag of Decaf WOW:
I had a bit of trouble figuring out the best roast, because I dont like any acidity in my espresso and I dont like it too bitter.
I found that a blend of 75% medium roast ( 8 minutes in my popcorn maker) and 25% dark roast (12 minutes in my popcorn maker) produces a full bodied espresso with no acidity and a beautiful combination with milk.
With Turkish, the same works quite well.
Now Im at peace! :)