bruises after 4 days

i reported some heavy bruises and marks on the shaft after only 4 days locked in a holy trainer v2 device, these marks will be visibile on my album when it will be approved. is that normal? they are black colour and are due to the skin being compressed between the cage itself and the balls

is there anyone who doesn't report bruises?

if i touch them they are a little bit painful and create some discomfort? could this be a sign of the wrong fit of the cage?
there is no way i can put my shaft's skin inside the cage,my width doesn't allow to fit the cage on the shaft without leaving out some skin