GSA-H20L better than a GSA-4166B

I just purchased a HP DVD840RI in hopes of getting the GSA-H20L version. Instead mine is a GSA-4166B. I flashed it to V1.02 of the firmware for the GSA-4166B and it seems to work well. Should I pursue trying to find the GSA-H20L version or should I just be content with GSA-4166B? Is the GSA-H20L a better writer?