Spell rotation when leveling priest?

Hi everyone,
I am leveling a priest and am currently at level 29. What I noticed is that it seems most efficient to dps mobs with this rotation: Mind Blast, SW:P, Wand, Mind Blast, Wand...
This means I am actually not using Smite or Holy Fire, even though I invested in the talents to let them crit more and shorten the casting time.
When I compare the dps of wand, smite and holy fire - wanding seems to result in higher dps due to the short attack interval.
Can anyone confirm that? Is it better wanding then actually casting holy spells when leveling?
I am leveling a priest and am currently at level 29. What I noticed is that it seems most efficient to dps mobs with this rotation: Mind Blast, SW:P, Wand, Mind Blast, Wand...
This means I am actually not using Smite or Holy Fire, even though I invested in the talents to let them crit more and shorten the casting time.
When I compare the dps of wand, smite and holy fire - wanding seems to result in higher dps due to the short attack interval.
Can anyone confirm that? Is it better wanding then actually casting holy spells when leveling?