When doing my homework on the cradle many of the builds had mentioned hook or twist in the hull. Apparently common from resin therm curing issues back in production as well as distortion from bad trailer support over the years. I used a self levelling cross line laser i broadcast over the hull. I put 12” lengthwise marks with post it notes and measured down each side using this to level all the strakes and pad out as close to perfect as possible. I used taper shims to get it all true. When i was satisfied i lifted the hull straight up and laid kitty hair over all the cradle and put parchment paper over then sat it back down until cured. The cradle was then a perfect fit. I used 3/4” ply, 2x6 and 2x8 and boxed/braced it every which way possible because i rolled mine in and out a few times. I did the same laser thing when i flipped it to fare and blueprint the running surface. Theres pics of this in my build thread if you cant make sense of that. Hope it’s of some help