Which of these 2 days for Spectro & Wishes?

[Praise2Him]

I'm going to DisneyWorld for a quick birthday trip August 6-10. My only options for seeing Spectro and Wishes are either Saturday night (always crowded, I've heard?) or Sunday night (early entry day for MK).
Any guesses as to which would be the LEAST crowded?

 

[RLewis]

it won't make much of a difference. Plan on Saturday, that way, if it rains, you can move it to Sunday.