Simon,
It is indeed a good forum but on 2-3 ocassions, I have been disappointed as no one has answered me.
However, the answer that I have got is that, I will claim points for earnings from my permanent employment and I will take the self employment papers as backup (just in case).
For earnings, I can claim 12 consecutive months (out of last 15 months) so April-2014-Feb-2015 is covered in that. As far as March-2015 goes, I did not take any salary from my company (no salary/dividend from business to personal a/c in march-2015).
Hope it should be fine ..