It's not an organic figure, it's a prop. Say, a straight pipe I want to bend. I'm modeling the pipe in an external modeling app and saving the OBJ. Then I'm bending it in degrees along the X axis and saving each bend as a separate OBJ, then importing them as morph targets.

The smaller bends, like 15 and  30 degrees, don't distort too badly on the way from zero to 1. But the more severe bends visibly warp, stretch and taper the prop as the dial turns from zero to 1. When it reaches 1, the prop returns to its proper shape (except for the correct bend). 

I can get a smooth morph by making the bend with a magnet within Poser, but then the bend itself stretches the prop in undesirable ways and doesn't look like a realistic bend. I can't figure out how to get the Poser magnet to bend something like a modeling program does, and I've tried every which way.

Anyway, I can create a good bend outside Poser, and I can load it as a target, but I can't get Poser to make a smooth, undistorted morph from unbent to full bend. It's like it only knows the zero and 1 positions, and makes a guess at what the in-between points should look like. I'm willing to provide the in-between bends, but don't know how to get them into one dial.