I'm always really tempted by these lenses (24, 35, 85...) because of their terrific sharpness wide open, but it's tough as a professional to not have AF. I'm even one of the rarities in my age bracket to have spent the majority of my career working in manual too... I just rely too heavily on the speed of AF.
Yes, some of the shots have missed focus, but it's so tough to be hunched over trying to get a shot with that shallow of depth of field and keep yourself from moving front or back...
Do you have a manual focusing screen? I'd be interested to move back to manual with a replaced screen. May make it a viable option...