I'm currently reading 'Under the Mat' by Diana Hart, I'm about halfway and so far I'm really enjoying it. A lot of it obviously deals with Davey Boy and Dynamite too.
There are a few horror stories about Dynamite.
About Davey Boy's steroid use, she says he started using steroids from doctors in 1987. Apparently he used 3 cc's of Deca twice a week as it helped reduce pain and swelling in his joints and also used some testosterone. Deca seems to have been his main steroid.