Hardware :: Data Transfer Slow Speed Rate To Time Capsule

I did some experimenting this evening to assess data transfer rates to various storage items in my home network which uses a new Time Capsule as the router/hub.

Connected to the Time Capsule are the following:
- Mac Pro (GigE)
- Vista Machine (GigE)
- MBA (Wifi)
- Raptor Drive (USB 2)
- Time Capsule Drive (Internal)

Transferring a 650MB file between devices yielded the following results:
MP > Vista (GigE) = 288 Mbps
MP > MBA (5GHz) = 52 Mbps
MP > MBA (2.4GHz) = 43 Mbps
MP > Raptor (TC USB) = 38 Mbps
MP > TC Drive (Internal) = 38 Mbps
MBA (5GHz) > TC Drive (Internal) = 22 Mbps

It seems that transferring files to a USB drive or the internal drive on the Time Capsule is painfully slow. It took 2:20 to transfer the 650MB file to the Time Capsule over GigE vs. 0:20 seconds to another machine. What's worse, is that the data transfer speeds to the TC are a function of link speed, the slower your connection, the slower your transfer rates. It's not simply limited by some bottle-neck in the TC. It took 3:45 to transfer the same file to the TC from the MacBook Air over the 5GHz WiFi connection. When I complained about this the other day at the Apple store, the "Genius" said that it's due to QOS built into the router to ensure it doesn't kill my web browsing.