If it's hitting 75%, sounds like you should be good to go. As I posted in another thread yesterday, go for some 65% beads. Make sure they stay charged and check them periodically and you should be fine. As long as the humi doesn't have any leaks, you should be good. You can test it with a flashlight in the dark. Close the light up on the inside and check for light leaks. Enjoy that new (free) humi!
Here's mine and it's Dead-Eye Dick: Western Caliber III
