1.0 or 0.8
the only reason I'd drop to 0.8u is because I feel he went into the greens last night and we don't know how low. If you shoot 1.0u you might have a mild hypo. I am overly cautious. I don't think the hypo would be bad and I think you could treat it with just a little HC.
Would be nice to find a dose that you can stick with for 3 days or so.
my 2 cents.