Yes, Gold Fleck is heritable as is Fruit Pox, which can occur on the same fruits, but their symptoms are slightly different, so you may want to check out Fruit Pox as well.
Gene expression is variable and is thought to be higher when temps are high and the plant and fruits are growing rapidly.
I'm not sure what you mean by scabbing though. I don't see it on the fruit in the picture. If it's random dark scar like marks on the sides of the fruit, but more often near the stem, then it could well be what's called Rain Check.
Here's a Google search on Rain Check with some pictures for you to look at.
http://www.google.com/search?hl=en&i...h&aq=f&oq=&aqi=
And if you end up stabilizing the strawberry shaped one, please think of me when it comes to seeds b'c I think you know how much I love to grow heart shaped varieties. But that could be several years down the road to get it to an OP state, so PM me when time is nigh.
Besides, then I could tell Jeff that indeed I did grow a "cousin" of his Brandeva.
