root grafting is a great way to take advantage of those roots that are broke off when you move your pots. 

5 out of 9 Survived, Wished the success rate was higher. The grafts that succeeded Long Yellow, Panache, (2) VDB's and Raspberry Latte........the failures Panache, CDD Blanc, Strawberry Verte, (2) Raspberry Latte's......Happy to see the results, Mold set in on the dead grafts, I cleaned that up with mouthwash or just clipped the branch off.  Note: I did get the grafting tape I believe its parafilm and kept on ripping when I tried to pull it snug.  So, there is probably another grafting tape that doesn't tear easily. So I like at this moment the green tape, because I can pull this real tight.

Wow, Francisco, I don't remember ever seen this video...

I guess once again, I reinvented the wheel.  My grafts onto roots were done on roots far from the main trunk.   i was digging my garden bed when i saw the finger think root and thought...why not?  I put the black madeira onto it. Both cutting and root were of same thickness.   The plant is doing fine. I have taken an airlayer from it to gift my fig friend, Slavi.  We shared the ucdavis cutting, his died, but I got mine to live attached to my tree root still in the ground.

This year, I dug it up  with a very  long root, not root ball, like cuttings make. The root was like a long snake. I did not see any thin filaments and was worried that it would not make...but it is growing just fine now, and it is 2x thicker.   it is fun to experimenting.

Armando

Congratulations!

This is very good performance, particularly with this grafting system

One of my neighbors never spends a cent on special graft tapes, film, etc..to tie up his many grafts.
Uses cut stripes of old cotton cloth previously soaked in a weak ( 1 or 2% ) bleach 'tea' and let to  dry without rinsing. This is enough to keep damaging living stuff away from the graft areas and until it takes.

As for sealing the 'job', here another traditional method, very cheap, and efficient still in use with many old farmers . This time on a bark graft
The tips of the two grafted scions may be sealed as well with a mix of resin, bee wax and fat, which is the home made compound used as a neutral sealant on many types of grafts