You'll notice that crisco will have a differnet taste.. ..primarily due to it's higher melting point.
It's best to find a fat that is solid at room temp but melts just below body temp. Crisco isn't that good for body temp melting, though... ...animal fat is right up that alley.
Palm Kernel and Coconut oil are like that too.
-SF
Though, just remember, if it's soild at room temp it's bad for you.. ..gasp, did I just say that?