I have a 14' aluminum fishing boat with bunk trailer. The bunks are pretty
short, sitting up 90 degrees. unlike other trailers I saw they have long
bunk with 30 degrees mounted on the trailer.

The problem I have is loading the boat back to the trailer, usually it
takes 2-3 times in order to get the boat align properly on the bunks. In my
past experience, if it didnt work I had to push the boat back in the water
and tried it again until the boat sat right on the bunks. That's pretty
annoying. I do have the side guides but didn't help much.. I am very
frustrated...

Any boat loading tips?

Tony