BitLocker and Hardware Encrypted USB Drives

[CHiLL]

We sucessfully tested BitLocker and are happy with how it works, so will be implementing it soon for all our users. One scenario that we tested was what happens when BitLocker is enforced on removable media - and then a hardware encrypted USB drives was inserted. We noticed that as per usual, the device required the password to unlock. Once it did unlock and present its partition to Windows...we encountered the BitLocker prompt to encrypt that. So that would mean encrypting the encryption and the user entering two passwords.

 

Is there any way around this, or is that just how it is? Ideally I'd like BitLocker to ignore devices that already have encryption enabled, but I don't think it can.