Yeah no problema.
The 6 pin just carry power in addition to signal, similar to the USB, right?
Our PD100 DVCAM uses 4 pin and the DSR20 uses 6 pin 1394. The computers and analog to digital converters use 6 pin. The Sony Vaio notebooks use 4 pin and the Vaio Desktop uses 6 pin in the rear and 4 pin in the front. Anything goes and the way I do is have an adapter and a 6x6 and a 4x4 on had to cover everything. The bigger DVCAM stuff DSR60 and up is only SDI.