Bookbinders tape works well for loading hinge tape which is what fails most often. As long as the darkslides are present and they're light tight it doesn't matter. Wooden holders can be repaired easier than plastic ones provided no pieces are missing. Plastic ones, (Lisco, Fidelity), crack and separate between the light trap ridge and the edge of the film plate when repetitively removed from the camera without releasing the spring tension from the camera back and is difficult to repair.