Best Sony DW-D22A (SOHW 1633S) Firmware?

I currently own a Sony DW-D22A drive that has been flashed using the BS41 SOHW 1633S firmware (or actually 1653S). I have noticed a firmware update for the Lite-On 1633S drive which is firmware version BS0S. I was wondering if this firmware is better than the BS41 I currently have which will let me write DVD-R’s at 12x. (I believe or it may be 16x)

If I remember correctly I left the BS41 firmware on the drive because it would allow me to write DVD’s faster and I don’t want to loose this feature.

If it is can I just flash my drive with the new BS0S firmware or will I need a patched/crossflashed version??