Strait Bend Testing?

[rickc]

I am interested in any testing results anyone knows of for the Strait Bend (pg 72 of the Apprentice). My specific use for this knot would be to join two 8mm to 11 mm nylon climbing ropes. The joined ropes would be used for rappelling. Typical forces are less than 1000 lbs force but with considerable possible jerking as the line is loaded and unloaded. I am unhappy wih the knot currently beiing recommended by many in the climbing community and am looking for a knot with a good lead, is relatively easy to untie after loading, is reasonably strong, and is secure under load cycling.
Thanks for your help in advance.
Rick C