Who knows what went on way back when Chuck became 'unreliable'? Did it cost Danny and Cory something? Did it cost them a LOT? Did it help end their collective/group career as consistant hit makers? Were they pretty much wrapping it up anyway? Maybe they had a specific shelf life? I don't know. I interviewed Danny at length back in the mid 80s. We sat down for an hour and then I subsequently went to the venue they were headlining in order to MC the show [Cary was there for that as well] We did not talk about Chuck. It was a positive interview and show and we used it to promote their gig at the Royal York Hotel.
It's a shame...at least on the surface.
Danny struck me as a VERY loyal kind of person. I'd guess though that THAT loyalty had to be earned.
Obviously something went down which leaves Chuck on the outside looking in.