index dial supposed to change damping settings. to be fair it worked quite well on mine. Not sure what the difference is between mag 10 and 20. others here will no doubt ;-)
index dial supposed to change damping settings. to be fair it worked quite well on mine. Not sure what the difference is between mag 10 and 20. others here will no doubt ;-)
Definitely a Mag 20. The brace indicates that it's one step removed from an RS-1 and the dials distinguish the Mag 20 from the Mag 10 (which just had rubber gromits over the needle value seal).