I haven't ever seen the fruit from the Mai 3. I am growing a jakfruit that is probably a seedling of Mai3, which was given to me as a purported grafted Mai 3 by Noel. Well, it was given to him identified that way and he gave it to me with the same representation that was given to him by someone....can't rememeber who exactly or what, if any the relationship was for this person with Excalibur, but I think there was some relationship. Maybe Noel will remember. Its got to be 12 or more years ago. Anyway, it has fruited a couple of years and it is obviously not a Mai 3 based at least on what I have heard about Mai 3. The fruits have been sparse in production and having poor pollination and therefore funky shape. I was going to cut the tree down this year when I see now that it bearing much more heavily and normally this year. So, it got a reprieve. I really like the look of this round jakfruit pictured. My alleged seedling of Mai 3 has much more elongated fruits.
On the grafting front, I haven't tried a lot of grafting. What I have tried has been approach grafts and they have been pretty succesful. I did three Borneo Red grafts and got two out of three to take. I killed one after planting it out, but the other is still doing OK. It is actually flowering now. Its still too small to carry any fruit, but the blooming is a good sign.
Harry