"best" is a pretty vague term ! What works for one person may not work for you
What firmware are you using today ?
Are you having any issues with your current FW ? If not, I would say not to flash.
As a matter of practice you don't fix what aint broke ...
If not, try the latest FW from Herrie - it is 1.07 b4. See this link:
Am not sure if there was any change in write strategy for G03 - I know there is a change for G04.
So again unless the FW you have has some issues, you may not gain much by upgrading.