One of the advantages of the Shimano Uniglide Freewheels/Cassettes is that except for one or two of the smallest sprockets, the cogs are reversible so you can use the unworn side...
Note: the screw-on small sprocket and sometimes the next larger one are not reversible.
Another solution is to switch to a Hyperglide cassette. This requires a slight modification to the splines. Hyperglide freehubs and cassettes have one wide spine.
Use a Dremel tool or a file to reduce the width of the wide spline. Note: the cassette sprockets are held together with 3 screws or rivets. They're only used to make assembly easier and can be removed and discarded.
verktyg