I have only rumors,need more info
below info from Vintagebmx..
E racer started about 1979, started by Les Petit out of St Pete FLA. He contracted with profile to produce the frames for him to market and sell.
the first two or three hundered were supposedly bought from robinson (rejects?) and then profile started making them and thats also how profile got into bmx...
I grew up IN FL and also heard the story that the first batch of frames were rejected Robinsons. Never did hear why they were rejected. They were everywhere for a short period of time.