Yeah the fluctuating AUD has caused me grief. I sent over an amount for a car (non-Corvette). It was floating around 1.04 USD and it took a brief nose dive, I sent at the 0.97 mark, it fell further and then bounced right back a week later.
If I'd sent it 2 weeks either way I'd have ~$1,500 AUD more in my hand today.
s