Reducing Standard Cast Times (not recast time) to 2s

[YusiKha]

Title.

Helps slidecasting and removes caster tax. Makes casts flow together better.
If you've played Red Mage, you know what I mean.

Edit:
THIS IS NOT FOR WEAVING LIKE AST HAS. THIS IS SOLELY FOR REMOVING CASTER TAX AND MAKING SLIDECASTING MORE INTUITIVE