I just got a Firestore FS-C for my H1. Works great manually, but I can't find a "DV Control" setting in the camera's System menu. Is it somewhere else, or am I just not seeing it? (I have looked pretty carefully at the choices.)
On the XL H1, press the "Menu" button to turn on the menus in the LCD viewfinder. Scroll down to "SYSTEM", press the scroll wheel to enter the System Menu. Scroll down to "NEXT PAGE", press the scroll wheel to enter the 2nd page of the System menu... there you will see the "DV CONTROL" option.