You're basically correct, though it's usually done with 4 mechanisms making an adjustable glider loop, which can have any period of 43 or more just by increasin

You're basically correct, though it's usually done with 4 mechanisms making an adjustable glider loop, which can have any period of 43 or more just by increasing the spacing: https://conwaylife.com/wiki/P43_Snark_loop https://conwaylife.com/wiki/P43_Snark_loop