I suspect if the hulls haven't dented yet, the ones I have are okay. I'm interested in these cradles:

http://www.onlinemarinestore.com/tek9.asp?pg=products&specific=jmoscqmqh4

(made for H-20 bow N 5.7 stern) since they mount direct to the 2x2 frame tube, and I would like to lower the bows some while on the trailer as they ride pretty high now. I can't imagine why they wouldn't work as well as the current cradles.

Dan - are those the H-20 cradles you are using, or are you using the Hobie H-20 cradles? (the Hobie cradles have a flat 3" x 6" bottom for mounting rather than a cutout that goes around the trailer frame).