Can some one explain to me the practical difference between the S-3 and the S-5 positions please
To me, the descriptions I have found, seem to imply either one or the other is used in most units but usually not both. But I dont know what one does versus the other.
Thanks...
To me, the descriptions I have found, seem to imply either one or the other is used in most units but usually not both. But I dont know what one does versus the other.
Thanks...
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