Success grafting sps?

[Slyguy00]

Has anybody had success grafting sps together? I was experimenting with my sps and decided to cross a piece of my Cali tort and a piece of green slider. I glued the 2 pieces together about 7 months ago. It didn't do much at first but as of lately has really taken off and has started forming some unique colors. Was this a fluke or does this happen frequently?

Sps #1

Sps#2 (big green one)


Final result