Fresh Peach Ice Cream

Southerners can be pretty particular about lots of regional dishes, but when it comes to fresh peach ice cream (or peach cobbler or peach preserves), the debates can become brutal. Which is the more ideal peach: a Georgia Belle or South Carolina Elberta? Are June cling peaches juicy enough for ice cream, or will only freestones do? Can cornstarch be used to thicken the custard, or will only extra egg yolks and plenty of heavy cream produce the right texture? How long should the ice cream be