Luke effect interaction with Implacable title effect

[Patrick]

Does Luke's effect ("treat the enemy ship as having no shields") supercede implacable's effect while Luke is attacking Implacable or can the Aclamator still use the effect to use front shields to reduce damage that would otherwise go straight to hull? 

[DSchultz]

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Does Luke's effect ("treat the enemy ship as having no shields") supercede implacable's effect while Luke is attacking Implacable

No. Review FAQ on Luke Skywalker.

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can the Aclamator still use the effect to use front shields to reduce damage that would otherwise go straight to hull? 

Yes.

Luke Skywalker's ability doesn't prevent the use of Implacable ability, as it is spending it's own shields to reduce the damage total before damage is suffered.