Sure. It's a very good question. It pertains to the Lomonosov Ridge, I suppose.
UNCLOS seems to differentiate between what you would call a ridge and what you would call an elevation. If it's a ridge, then the 350 limit applies as the maximum amount you can claim. If it's an elevation, then there is no limit. So yes, that's a point about which I would expect some confusion down the road. The Russians have suggested that the Lomonosov Ridge, in spite of its name, should be considered an elevation. Normally, the definition of elevation elsewhere is reserved for oceanic plateaus, non-linear features.