For me it will always be the appearance of Mark King on The Tube, playing the solo slap piece, that started people talking about him, and that bass he played was a Jaydee.
From then on, I remember stocking those basses in our shop and selling every one quickly. The problems came when Diggins produced a batch of basses (metallic finish, as I recall), and the lacquer or paint was faulty, causing him to recall them. Apparently, it almost bankrupted him at the time.