The experiment showed that a one piece casting is probably best. However, to ensure that we will be experimenting with other ways. So we will try to work in black again.
The experiment found that the work piece is cast as one of the best. However, to ensure that we will experiment with other jobs, so we'll try to black again.
The trial found that cast pieces, however, the best one would be to make sure that we will try to work with others, so we will try to work the black again.