Last year about this time I was given an Acuba cutting about 15" tall and about as big as Sharpie. It did eventually root, but I'm wondering if this is the best size cutting to take. Would smaller be better? Larger? Ideally, I'd like to root bigger ones, just because I'd be planting bigger starts. On the other hand, I have the material to make about 15 times as many smaller cuttings...

Any advice?