here's a reference to the thread containing the chart I was talking about
Flex vs PC (table)
Max speed on the
PC is 6, OPM of 6000, the Flex at 3.5 has an OPM of about 6000.
Max speed on the Flex is 6, OPM of 9600
My biggest worry is going at a high speed and drying out the polish too much. Despite that recommendation you found, I'm still gonna stay at 3.5 until I feel comfortable.