UK Non Tax Resident - The 5 year Rule

Hi. Just so I understand the 5 year rule a little better for being a UK Non Tax Resident, I have created this simple example. (We will presume in this example that I am correctly following the UK sensitive ties rules for spending the appropriate number of days in the UK. So .... lets say I live 6 years overseas as a non UK tax resident, but I make a £1m Capital Gain EVERY ONE OF THOSE YEARS = £6m. I then choose to RETURN to the UK on Year 7 as a tax paying resident. In theory would my CGT bill be £0?

Hi,
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Thank you.

Seems a pretty basic principle that I am asking about but ok.