Non recoverable for VAT EXEMPT-ZERO

Hi

We have a few tax codes such as VAT exempt,VAT zero which VAT rate is zero, however in R11 Vat recoverable option was enabled for them and invoice distribution generates 2 lines (recoverable+non recoverable) with zero amount as VAT percentage is zero (we upgraded to R12)

Now i need to define  tax codes for a new company and for above VAT codes I am not sure if i should enable the VAT recovery, and the impact on the TAx Register Report if i do not enable VAT recoevery..

Thanks in advance for the feedback.