I'd change the default catalog/product/price.phtml

I've tried already:

        <reference name="catalog_product_price_template">
        <action method="addPriceBlockType"><type>simple</type><block>catalog/product_price</block><template>catalog/product/custom-price.phtml</template></action>
    </reference>

but using xdebug I've seen that the addPriceBlockType method is not used for the simple product, so it returns the default template.

where I'm wrong? thank you

I'd change the default catalog/product/price.phtml

I've tried already:

<reference name="catalog_product_price_template">
     <action method="addPriceBlockType"><type>simple</type><block>catalog/product_price</block><template>catalog/product/custom-price.phtml</template></action>
</reference>

but using xdebug I've seen that the addPriceBlockType method is not used for the simple product, so it returns the default template.

where I'm wrong? thank you