hair loss on balls from pumping

[BigMeatNJ]

question for all you guys that use a monster tube or bullmaster for ball pumping. I have been using mine a few times a week over the last 6 months or so and have noticed that where I used to have to shave my balls..they were very hairy...now they are relatively smooth and hair free.
has anyone else experienced this? I am guessing it is from the frequent pumping and rubbing that goes with being hugely pumped.