bq34z100 Control Sub Commands

I'm writing firmware for a MSP430F5638 to read the bq34z100 fuel gauge using I2C and have the standard and extended commands working, but have a few questions about reading the control sub command information.

I have a routine to read the control sub command information and the values that I get back match the values read using the DataRam -> Conrol method of reading the control values with the exception of reading the Static Chem Checksum. Is a delay required between issuing the Static Chem Checksum command and reading the result?

I've noticed that the values that I read for the Device Type, FW Ver and HW Ver with either my code or the TI app using either the DataRam -> Conrol method or the Read/Write I2C Byte methods don't match the FW Ver or HW Ver info on the Data Flash tab, should this not be the same?

Thanks,
Steve