Most of the anti Jeffery patter came posthumously from embittered former emloyees and usually mainly relates to their own situation: Noel Redding & Buddy Miles chiefly, then Juma, and then Chas (anxious to shift any possible blame from himself?) who although charming did like to portray things in a colourful manner.
There was an article written at the time by two Swedish women who thought his work schedule was harming him, their reasons for this I'll have to look it up and see. And Jimi wrote to Reprise that it took a long time to make Ladyland as he was touring hard at the same time (not strictly true)nI can't think of any other contemporary adverse comments about his touring schedule, but that would be most interesting
How do we know Jimi really wanted to get rid of Jeffery as his manager, he was after all 50/50 partner with him in his dream studio, and had deep but unknown financial involvement with him and shared a legal team? Who's word do we have and how reliable is it? What do Billy & Mitch, Eddie, Trixie, Gerry & Eric Barrett, Devon, Collette & Stella, James "Vishwa" Scott, his various business associates and others that were actually close to him in late 1970 have to say about Jeffery?