Updating variant prices in bulk via GraphQL: primary currency vs Price List performance

[Chris_Marshall1]

Question about bulk pricing updates. We can bulk update up to 250 prices in a single call with the below mutation. This is a really efficient way to bulk update prices. I can only figure out how to do this on a Markets price list. Is there an equivalent that will let me update 250 variant prices in the primary currency?

mutation  {
    priceListFixedPricesAdd(
           priceListId: "gid://shopify/PriceList/2433242",
           prices: [
    {
        price: {
            amount: "1.23",
            currencyCode: GBP
        },
        variantId: "gid://shopify/ProductVariant/234234234"
    },
    {
        price: {
            amount: "2.34",
            currencyCode: GBP
        },
        variantId: "gid://shopify/ProductVariant/2343243242"
    }
])

[inventoryanimal]

Anyone find a way to do this?