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The cryo'd ones were actually down on spring pressure because of that treatment and I needed more spring, not less, so I didn't use them.
Both Scat singles and the Berg duals were very down in spring pressure after some use, hence I now use the CB650.
They are such a nice spring, I would almost recommend them for everything, also because the 650 seems more progressive in rating, so lower lift cams don't get the higher pressure, but the spring lives much longer, which is good if your going turbo later. After all, you don't want to start the turbo motor with an already weakened spring.
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