Thanks for your response and the additional information.
The residency position has changed since 06/04/2013, so both the old and new rules have to be considered.
But as you still pass the third automatic residency test for the period of employment abroad, which states
Third automatic overseas test
1.5 You work full-time overseas over the tax year, without any significant breaks during the tax year from overseas work, and:
you spend fewer than 91 days in the UK in the tax year, and
the number of days in the tax year on which you work for more than three hours in the UK is less than 31.
This is how the old rules considered non residency, but this is why I asked with respect to your time back in the UK, to be sure that there were no aspects to affect this position.
If, you have not already, then you should complete form P85 for HMRC which advises them of your work abroad, and will allow them to award you the consideration of not resident for the whole period, which allows your income from abroad for this time to be free of UK tax.
They will, however arrange to send you a self assessment tax return for the period 2012/2013 and again after 05/04/2014, for 2013/2014, and again for 2014/2015, to incorporate each part tax year and the full tax year (so this spans over 3 tax years)
But you do not have to reconsider your visits back to the UK, this still sees you below the 91 days.
Link here for P85 if you not have already completed and sent this into HMRC
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