looking to place an order for x3, but have a few questions that werent clear from the website if someone can help:

1) if i pay with bitcoin, how do they calculate the btc/usd rate? is it mtgox or btc-e?
2) it says in the faq if pay 50% you get 15% discount, if you pay 100% you get 30% discount. But the website only has 15% discount, how do you get the 30% discount if pay full?

thanks