I worked for Proline years ago. Great quality vessels. In 1993 they were innovating and pumping soooooooo many boats out. And always innovating. Even though they are high production they're highest quality production boats I have built. We threw away 1 hull 2 liners and a molded stringer part. Ther liners prereleased. The manager messed up the very first one piece stringer using undied catalyst and if I remember correctly he ran out of catalyst half way thru chopping it.😆. If a hull/part prerelease ed it went into the trash.