You basically have 3 different shades of Hypo banding, the dark band can vary anywhere from Black (old school Hypo), Purple (Ultralight Hypo) and Silver (Extreme Hypo) and anything in between, most Extreme Hypos sold are quality Ultralight Hypo, a True Extreme Hypo is uncommon and command a hefty price tag.

You have an old school hypo on the left and an Ultralight Hypo on the right.
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