Commercially hardly gets this hoe. In almost all hardware stores do not have. In Frankfurt, in a large garden center, was just 1 copy on the store shelf.
So only buy with sufficiently long handle - On the Internet, some others are available, but they all have a short, 80 cm stalk. In my view, insufficient.
And yes: the Hoopoe hoe to apply for heavy soils. Where garden hoes from the hardware store do nothing more. Ideal for digging rootstocks, because you have on the one hand an ax and a hoe at the same time. With the hoe digging out the root and with the ax separates you from the foothills of the root rhizome.
So only this is the right pick and the right Hoopoe hoe.
Good luck with that and good luck! - Really fun to work with the "correct" tool