it aint that hard to get skinny! [spell]

[Charlie Kemek]

Dimensionalize
Transmution
spell level: wiz/sor 2, brd 2, beguiler 3
Components: V, S, M, F,
Casting Time: one standard action
Range: touch
Target: willing creature or object touched
Duration: one round/level (D)
Saving Throw: None
Spell Resistance: yes (harmless)
the receiver of this spell suddenly becomes thinner than a sheet of parchment in one of the three dimensions. this is useful for getting through cracks in doors, and other areas like that. the subject of the spell recieves a +10 bonus to hide checks if someone is looking at it on the thin side, and gets +4 bonus to AC, and it's HP is reduced to a piece of parchment's. the subject, however, is unable to attack with a sword or a spell unless the spell contains no verbal or somatic components, due to the fact that the thinness of the mouth and fingers. it is also unable to speak, and all bonuses from armor are halved. the target also has DR 5/slashing, piercing, and non-area spells. the target effectively becomes a piece of animated parchment.
if the target of the spell is in a crack, or other position, when the spell ends, it must make a fortitude save (dc=10+material's hardness), or take 4d6 points of damage. if the fortitude save is made, the charactor may make a will save (dc=20-half of the caster level[maximum 10]) or the target becomes stuck in the material. If the will save is made, the charactor may take another turn in flat-form. if he is still not out, he must make another set of fort & will saves.
Material component: a small piece of bendable materiel like clay, that is squashed in the casting
Focus: a piece of parchment.

so, what are people thinking?
i know that it needs some work on how to get a person out... any suggestions?