How many rollers do you have? Just 2? Ideally you would want the keel to hit the rollers first and center the boat, then as it moves up the trailer more and more weight on the bunks. Really depends on the hull though. Hard to see yours from those pics, looks pretty flat, but the hull is riding pretty far away from that front roller in the one pic, looks unused. From the pics though, looks like your hull is designed to have most weight on keel rollers, and the bunks more of a stabilizing element.
Imagine that the bunks are not there and it could balance left-right perfectly, would the hull be hitting any parts of the trailer or only be on the keel rollers? Would there be room for the bunks + bracket?
When the boat starts moving up onto the trailer does it hit any rollers first? With most boats I had on the "normal" grade ramps I used, the rear keel roller did not get touched by the hull when loading or unloading in the water. (I suppose a more gradual grade ramp could possibly have had the rearmost roller ramp in play). The vee would hit the next one up and try to center, then hit the next one and roll up easily and ready to be winched on up. The bunks came into play about the last 2 feet or so. Of course the shorter the boat the shorter the "last stretch" is when the bunks hit.
Having the bunks upright like that instead of flat is to support more of the hull weight and have no flexibility at all, and need to support a very straight part of a hull, aligned under a massive stringer. If a hull isn't straight where it rides on the upright bunks it soon will be after some trailering, just sayin'.