I should have stated the circumstances with more clarity.
TTl-bl was relatively easy.
But TTl, to shoot paintings on a wall with no ambient light contributing, quickly proved too complex for me. Metering should have been Spot. Set on the camera, for one thing. With relatively fast shutter speed and low iISO to block the ambient light.
White Balance was set to Flash, and I used a Gary Fong Diffusion 'dome-thingy' for even lighting.
My wife has 60 of her paintings sold and they go off to a show later this week. I have to document all of them. I'm going to set the strobe to manual, trigger my Minolta meter with a cord, and adjust camera settings to what the meter dictates. I'll bracket each shot with 1/3 =/- stop.
Later, when there's time for experimention I'll take a crack at CLS one more time. The item that disturbs me about CLS, is how spurious EC and EV +/- corrections show up in the image metadata. I didn't mention that, but It feels as if a monkey were let loose in the house!