ktmrfs, I have the straight cam chain holders, and they are positioned correctly.
mrekim, your drawing (and it's very artistic!), is correct as to how the new s-ups fit on the frame. I wonder why they can't make them square to the frame like the old ones are. Maybe it's an intended engineering design!! That would be a hoot!!
Attached are pics of the frame, inside and out (outside is straight), and the old snap ups, and a pic of the last setup with 1000# bars. On the s-ups pics you can see the slight bend at the bottom of the s-up that was on the left side.






On the inside frame pic, you can see old evidence of the snap up sliding to the rear, that did not happen in this incident.