Every time i read something like this it it makes me thankful I paid the extra $3800 and got a BX23 instead of the BX2230.
You can certainly dig holes for new trees, however, in my limited experience a small BH does not work very well to remove trees for replanting. For me, anyway, it is almost impossible to scoop the tree and root system in one bucket pass, without mangling the tree or the root system...