(16)For exposures secured by residential property and exposures secured by commercial immovable property, the loan-splitting approach should be kept, as that approach is sensitive to the type of borrower and reflects the risk mitigating effects of the immovable property collateral in the applicable risk weights, even in the case of exposures featuring high loan-to-value ratios. However, the loan-splitting approach should be adjusted in accordance with the Basel III standards as it has been found to be too conservative for certain mortgages with very low loan-to-value ratios.