Back of cartilage piercing?

Question

ok so i heard that a butterfly back is bad. so i want to change mine to something else. i had it pierced last friday. so a week from tomorrow.

im not changing the earring.

_is it safe to change the backing of the earring?

_what is the best backing to change it to?

this is what i have on:

http://www.gemologica.com/images/pc4x_14k_white_gold_screwback_clutch_1.jpg

what should i change the back to? something like this?

http://gotogreatpanes.com/supplies/jewelry/frhookbacks.jpg

or

this

http://www.dawnwoodward.com/shop/catalog/images/DSCN2579.JPG

or something else? picture if you can please?

thank you!