COC/CAC is an excellent grower that is quite vigorous as mangomongo mentioned. It has been disease resistant and is a reliable bearer. Sweet Tart and COC/CAC are probably the top two varieties I recommend for SoCal mango growers. The fruit is delicious and fairly large, about a pound.
I gave scions to several friends and they report that their trees on LaVern Manilla rootstock are growing exceptionally well.
Simon