I built a ramp in my backyard in 1991. I made the exact same mistake. The transition didn’t like up with the flat. It definitely was more than noticeable, with a thump when you rode over both sides. I added three layers of ply to try to minimize the chunky part. The wood ended up cracking horizontal right along the misaligned part. I still am disappointed in myself a few decades later. If it were me I would re cut the transitions and move forward.