I ran a leak test. My leaf blower is industrial sized so I did not want to try to use it. I used my shop vac instead. It puts out a very stiff blast of air. In fact on the first try it blow out my cardboard and tape seal.
I found no unexpected leaks. The soap did bubble where I expected. My skylight does not have a seal. Instead it uses a 4 inch lip to prevent water entry. I got big bubbles around the skylight. I had a small bubble at the back door but only in the area of the lock. I also had large bubbles around the hatch for the outside shower. There is no seal on the hatch cover and the hoses need to move freely. I also got small bubbles around the vent flap for the stove exhaust. I would say the leak testing worked and even better I found no leaks.