So I have the chance to get a super cheap tamukeyama. I already have a large one but the trunk on this one is about an inch thick with decent nebari. Does anyone know what they usually use for rootstock on these and is it worth experimenting with. I’d be buying it for the rootstock only. I know it’s not a green maple because the rootstock has a shoot or two coming off it and it’s purple. Atropurpureum? Would this be worth messing with or just leave it at the nursery?