Psychofeedback + immunity to ability drain= win?

[Hario]

I was looking at Psychofeedback a Psychic warrior spell seen here: http://www.d20srd.org/srd/psionic/po...hofeedback.htm you take ability damage to one stat and gain it in another, if you were immune to ability damage would you still get the benifits, one easy way to be immune to ability damage is to use OakBody, seen here: http://www.d20srd.org/srd/psionic/powers/oakBody.htm There are other ways like taking necropolotain. I know it seems against the meaning of the spell but it doesn't state that being immune to ability damage doesn't negate it.

[Nebo_]

Psychometabolism
Level: Egoist 5, psychic warrior 5
Display: Visual
Manifesting Time: 1 standard action
Range: Personal
Target: You
Duration: 1 round/level (D)
Power Points: 9

You can readjust your body to boost one physical ability score at the expense of one or more other scores. Select one ability score you would like to boost, and increase it by the same amount that you decrease one or more other scores. All score decreases are treated as a special form of ability damage, called ability burn, which cannot be magically or psionically healed—it goes away only through natural healing.

You can boost your Strength, Dexterity or Constitution score by an amount equal to your manifester level (or any lesser amount), assuming you can afford to burn your other ability scores to such an extent.

When the duration of this power expires, your ability boost also ends, but your ability burn remains until it is healed naturally.

If you're immune to the damage, then the score doesn't decrease. No benefit.