BLM Question

[nota]

Couple Questions
1. Should I use The following spells into my rotation. Transpose and Surecast?
2. What would be considered the correct use of Lethargy and Freeze?
3. Should I Not bother with Lethargy and Freeze?

1. You use transpose before you have Blizzard III to regen mana. If you get hit hard enough, your spell will be interrupted by damage.
You use Surecast to prevent this. Basically anytime you are casting and might get hit in a dungeon.

2. Lethargy puts a attack speed/casting speed/movement sped debuff. You can cast it on adds and some bosses to reduce their damage.
Freeze sucks. There are some uses with swiftcast but its damage is very poor.

3. Lethargy is good, Freeze sucks.