How will BIOS flash affect DSDT

Hi

I want to upgrade to 10.7.2 but saw that there is a new version for my BIOS out. I currently have F2 installed with the corresponding DSDT and things are working great (sort of) but I want to upgrade to the F4 version which is currently available.

So my questions are:

1. If I flash my BIOS first with the F4 drivers will I still be able to boot into my Lion since it's still configured for the F2 DSDT - how will this mess with things

2. Do I upgrade to 10.7.2 first and then run MB with the F4 DSDT restart and upon restart flash my BNIOS with the F4 drivers

Thanks for all the help in advance - this forum rocks

I just saw that there is already a F6B version out but the DSDT database only has up and till F4
Oh well . . .