A guy in the UK has Danger Zones up on e-bay. At £110 they are pretty pricey but I'm still tempted. I was too young to appreciate them back in the day...
I checked the retired ball drill spec sheets and couldn't find the RG/Diff numbers. I'm just curious if anyone knows them. I know its low/high but I like to know the numbers. I know its PK-18.
Thanks in advance.