[MegaBlues]

Blink is 4 FP, Swap Position is 10 FP, primary enchants are 8 FP, and secondary enchants are 16 FP, and all are likely to be reduced further by Efficiency talents. Something like this would be justified in being 100% of FP used.

More than anything, though, Mage has SP issues, since they have some needless SP sinks in Tier 2 spells and Auto-Enchant. They'd need to be able to even afford the secondary enchants before being encouraged to use them.