Bucket I think your referring to strakes, not chines. The chine line is where the side plate meets the bottom plate. In a single chine boat (even production aluminum boats that cap it with a piece of angle) thats only one line per side. On a boat with a flat chine plate p/s, theres an inner and outer chine line that defines the chine plate. The rest of those angles in the bottom plate are called running strakes. They are very similar to chines, but it would be wrong to call them that. Your right about the stringers being under the bunks, but be careful to figure out where they lie as production fiberglass small boats, like trophys, often avoid the strakes altogether by boxing over the top of them. The stringers are purposely between strakes which is easier to lam and inherently stronger.

You can borrow some boat stands next time from a repair shop and they will speed up your trailer adjustmentdepending on how agile you are Oh yeah, my boat in my my avatar. It was very quick to set the bunks on this boat by pressing the bunks up with my legs to the hull where I wanted them and then tightening the bolts at the same time.

Sorry for the lengthy speal. I am into boat building.

Dave