I ordered day before yesterday, and then the free ship deal came out. Called them back and they retro'ed the shipping to save me the $15. Nice!
As for membership, I could not choose the 6 month free trial offer, because they know I already used that by way of my login. So I chose the annual auto-renewal at $16. No other choice that I could determine.
Curious how the website works better on my phone than via PC. :(