Thanks for all the great input!

Trisk,
If the whole shimming/orthotic thing doesn't work, I'll consider the custom crankset. My hip & back were reasonably happy with the shimmed Look cleat, so I may be able to get away with having half of my LLD corrected. I hope.

Knot,
I have corrected the outsoles of some of my shoes. I probably own one of the few pairs of Platform Tevas -- think '70's. OK, only the left one is a platform Teva, the right one is standard. I also have a platform Birkenstock. Yep, I'm just way too cool.

Mr. SR500,
The John Howard bike fit videos were interesting -- thanks for pointing me to the spot where he talked about LLDs. I may be wrong, but it seems that his point was that the LLD may be due to anatomical issues or muscular issues. He went on to say that 9 times out of 10, the LLD vanished after he made adjustments to patients on the table. He also said that correcting with shims exacerbated the problem as it extended it rather than levelling it.

Seeing the video has raised some additional questions:
1. What if the LLD is due to an anatomic issue that can't be corrected with adjustment? In my case, I had a spiral fracture of my left femur; each fracture point lost about 1/16" during healing, and if you do the math, well, my left leg is about an inch shorter than my right. Can this be corrected with adjustments? Or is this the type of problem that is best corrected with shims?

2. If you make soft tissue adjustments to correct LLD issues, is it a one-time deal, or does the area have to be adjusted periodically? Who's qualified to make these types of adjustments? PT? Chiropractor?

I'm not sure if I'm wording this well -- I'm not really expecting anyone to give me the answers, I'm just expressing my curiosity and am interested in hearing others' opinions or thoughts.

Thanks again to all who've weighed in on this.

-- Melissa