EAC settings for 3520a

Hi, im just wondering about a few settings in exact audio copy.

In drive options -> secure mode

What should be checked ?
Drive has ‘Accurate Stream’ Feature
Drive caches audio data
Drive is capable of retrieving C2 error information

In drive options -> Offset / Speed
what Read sample offset correction value should i use ?
should i check Overread into Lead-In and Lead-Out ?

Caching: No
Accurate Stream: Yes
C2 Error Info: I´d suggest “NO” The drive has this function but i had better results ripping scratched CDs with only Accurate Stream used.
The Read Sample Offset gives me +48 with my drive and reference Cds

thanks alot