The (as) adjective + as + subject + be pattern confuses me sometimes. Are the pairs below correct and equivalent in meaning?
1a Strong as he is, he can't lift it.
1b He can't lift it despite his strength.
2a Strong as he is, he can lift it.
2b He can lift it due to his strength.
3a Strong as he is, no one can beat him.
3b No one can beat him because of his strength.
4a Strong as he is, he should train every day.
4b No matter how strong he is, he should train every day.
(All examples are mine.)

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