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@Regal
Ah, right. No, the 7710 BBs aren't adjustable in terms of chainline. The splines stop a set length down the axle and that's where the crank bottoms out.
The left-hand cup uses an old-school lockring type of affair, where you tighten the cup until the axle stops turning freely, back it off a bit, and then hold it there with the special tool while you tighten the lockring. See the techdoc (PDF) for details.