Diamond Dave was great in the late 70s early 80s. He had an unbelievable stage presence, for those who have seen the band live. (I never liked Sammy Hagar anyway, they say his Cabo Wabo Tequila is good, and he should maybe stick to producing it). In 1984 VH sold out 4ever. Diamond Dave went literally bonkers (remember how he embarrassed the others in front of the TV cameras in occasion of another attempt at a reunion?).
DD had been long F.R.I.E.D., but even so, I don't think he was bashing the Police. He was just putting the emphasis on the differences between the two bands, and in a way, showed where the umpteenth reunion idea came from...