i seem to be having a great deal of dificulty dual casting conjuration spells such as the flame antronoch. i can cast it 3 times normal non dual cast but when i go to dual cast it says not enough magika....? i notice too when i do dual cast my ghost wolf it seems to use alot of magika even tho i have the perk that is supposed to make the spell cost half as much. i even have the perk for the novice conjuration and apprentice. what im asking is what is wrong with what i have done. why wont it dual cast?

yeah mage's spells take too much juice

cant tell how much i would need to dual cast conjuration. is there a way to know? thought i would be straight forward dual cast costs twice as much as a regular non dual cast version of the same spell. is there something im missing?

I thought it cost 3x magicka against 2.5x duration/damage.

if it does costs 3 times the magica, something is a miss becase i can cast my conjur spell 3 times bfore its too low to cast again.

I dont have any dual cast perks yet, but I think its 2.8 times mana for 2.2 times the effect.

You might be right at the edge of what you need to dual cast it. When you single cast maybe some magicka regenerates to allow you to cast it 3 times.