Sorcerer Blood Lines and Polymorph Spells

[Melil13]

Am i correct in how i read this... I have a DD build i am using with Sorcerer Blood Lines.

So i figured whats a cool way to get even more natural attacks in? Monstrous Physique!

But now i read that i loose my SU and EX abilities when i poly morph ... so i lose all my Natural Armor and my Str bonus (abyssal blood line through feats).

Did i read this correctly? (Under Polymorph it says you lose all SU and EX abilities ... why would a sorcerer ever take these spells? Why are there even blood lines that encourage them to take these spells?

[Mojorat]

You loose abilities dependant on form. Ie polymorphing I to a shark no claw attacks.

[Melil13]

So then i would lose my Wings, but keep my Str and Natural Armor?

[Ravingdork]

You lose any class features that depend upon form, but those that allow you to add features (such as sorcerers that can grow claws) still function.