Chuck does have a bad rep, i was on a trip to see my Mum and Dad in Tennerife, they had been out there for a few years and found a great live music bar up the mountain in a small town.
They took me there and we watched a great music set from an excellent blues band, i got talking to the bass player afterwards, he was American and he said he had played with Chuck once, he hadn’t seen Chuck til it was showtime, no rehearsal, no sound check, no tuning of the guitar, no set list, he comes on stage and our bass player ambles over to him and he says, ‘Chuck, what songs are we playing and what key?’ Chuck says ‘Listen to me boy, i tap my foot one time and you come in, i tap my foot 2 times and you stop’ what a pro.
When the Stones did US tours there were stories of Chuck (Warm up act) refusing to go on til he was paid in cash.