You know Kadie, if you have an Arabicum that is not of the same form of the one you posted. You could try it.
I grafted a Arabicum scion onto obesum rootstock. Would not do again. Obesum is much faster grower and the Arabicum is tiny in comparison.
Another was a Swazicum scion onto a Arabicum rootstock. Friends told me from Australia that the Swazicum will probably become long and possibly leggy and Arabicum slow. It is like this somewhat now, but young graft. Jury is out on this one.
On another note. I have some extra Swazicum and Multiflorum seeds that I am going to give away for the cost of postage, if you are inclined?
Rick