Pearl Mango Tree (keep or ditch)

[Ripple]

From some of the forums here, I hear that the Pearl mango is related to Keitt, which I do not care for (at least not the brightly colored ones that I see in the grocery store in Melboure). The Pearl has been grafted, and the bottom of the tree (unknown variety) is starting to sprout leaves. I was debating whether to spend my energy on a better variety, or keep it around and see how well it does in Melbourne. Does anyone know what it is likely to be grafted onto (if the bottom is worth keeping)?

[Oolie]

Might as well let it fruit, if the fruit's no good you can always graft later, but if you graft too soon, you could miss out on something special. For reference two new Zill selections (Honey Kiss, and M4) are Keitt seedlings and are very well received.

[Ripple]

Thanks, I will see how it does.