When I did that route I got to the midway anchor and clipped two quickdraws into the anchor and clipped both of them in my belay loop. But now that I have climbed a lot more I would never get caught doing this. What if one bolt blew (which is possible) I would have been clipped in with one non locking point. I only anchor in with lockers now. Whether I am tied in with the rope, daisy, or PAS depends on the situation, but there will always be a locker at my main attachment point which should be equalized via sling or cordelette. You say the chains were horizonatlly opposed? You need to Equalize those points with slings long enough to allow a shallow 60 degree or less angle. Which would allow the bolts to share your weight and also protect from shock-loading in case of a failure of one point.
Earlier you talked about an american triangle, which is different than what you saw on Ranger Bolts. You had two bolts with chain at a large angle. Larger angles increase the force on each bolt exponentially, a 120 degree angle would 2x the force on each bolt. The triangle is when one piece of webbing is threaded through both bolts and then down to what apears to be an equalized point, Almost like an equilateral triangle, which increases the force on both bolts dramatically It is eas yto tie from rap stations but should only be used when both points are bomber!
If this stuff is new I recommend getting John Longs Anchors book. Or taking Pacific Edge Anchors Class.
