Thank you all for your replies. I tried to call Jim Chambers, but he is out of town for a couple of weeks. I had not been shooting my muzzle loaders for a few years. An old friend moved back in state and we started talking and next thing I know, I have a new Chambers kit on order and we are on our way to the CLA show last Aug. My wife got me the rifle for our 20th ann. and the CLA show was like Disneyland for old men.
Back to the rifle, as near as I can tell it has about 3/8-1/2 in toe out. So Fred, yes, the comb has 1/4 in of cast and the toe has 5/8-3/4 in. I don't have the sights mounted yet. It is kind of hard to tell, but seems like I have to twist a little counter clockwise with my right hand to make the top barrel flat be level. It feels fine on my shoulder. I am 5ft 8 in / 160#. No big chest or muscles although I try to stay in shape somewhat.