Nice review Dave.
I noticed in the pictures that the barlow doesnt seem to be sitting all the way into the focuser. Did you have to pull it out some to achieve focus?
Good thing you have a crayford focuser Dave, I'd hate to think how the standard r&p focuser would go with such weight hanging off it
Looking forward to catching up with you. Id love to compare your barlow with my Celestron Ultima in use with 1.25' eyepieces.