I tested it in practice with ~1500 mAh scuds (bluedream and yellow ones, doesn't matter, as they're same cells, anyway) - after 1,5 years of *proper* storage, capacity loss was negligible. Seriously. Made dual-cell from one such pair, and it gave me ~3400 mAh relative capacity (about 3000 mAh Q10 capacity).

My storage method is to charge them to max, then ASAP discharge to 3.8V (stop discharging when it "touches" 3.8V at Q10 discharge current [Q10 = current equal to 1/10 battery capacity/h), which means it have ~80% capacity. I leave it in this state in room temperature, repeating operation every half year or so.
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I know that theory seems to suggest otherwise, but my practical experiences seems to prove otherwise, so I'm sticking with it.

Also, there are other practical examples of this "tactic" working great for prolonging Li-Ion's life - even during usage. AFAIK, Li-Ions used in hi-tech trains are never charged above 80% capacity, and never discharged below 20%. This gives them extraordinary service life, around 5x longer than for batteries charged to full (i.e. they tend to lose max capacity and increase internal resistance ~5 times slower, than if you "abuse" them to full, 4.2V charging).

/Estel