I have had one tree lose its top. When I purchased my first cuttings, I was told they would not give fuzz. That stuff flies all over starting in early Summer. If you have a swimming pool close to these trees, be aware, that the fuzz is very annoying and forces you to skim your pool more often. It can clog up your filter.
Fuzzies can also be very dangerous.
If their density is high, and a flame just happens to be applied to them, they will ignite with incredible speed. There is a place for female clones mainly for the paper industry. For information on gender, please see the page on Choices 3. Plant trees away from your house. In early spring, when trees start to grow, some of the buds will fall to the ground where you pick up with your shoes and track inside the house.