I'll have another one later today and/or tomorrow and post back for sure. So far though I'm really happy with it, with pokerfreak2, it might be my best yet. I still have some greenness to it, but it's otherwise really good. The pecan is nice and subtle, and very late on the finish. The oak/scotch hits immediately up front, but then fades out to the porter flavor.
duffman, in answer to your PM (your box is full) I roasted the heck out of the pecans first to try to get as much of the oils out as possible. I heard that the oils will spoil the head. So low temperatures for a fairly long time, until they look nearly burnt.
Then I just added them to my grain bag and mashed them right in with the grain. As mentioned above, be sure to get all that papery stuff off the pecans, it's really astringent and apparently can really come through in the beer if it gets in there. I didn't have to worry about that because I just bought shelled raw pecan halves. Oh I also broke them up a little more to expose more surface area.