Elderflower Champagne - avoiding exploding bottles (part 3)

This is the 3rd in my series of making Elderflower Champagne -
Here I am testing the sugar content with a hydrometer of the earlier made fresh flower elderflower fizz (river cottage recipe), in an attempt to avoid exploding bottles. The dried champagne is on the left and is too early to test needs another 3 weeks I think.
Here also is a guide to reading the hydrometer - too much of a detailed shot for my video skills www.grapestompe....
For recommended elderflower hydrometer readings try this www.brewstore.co.uk/ekmps/shops/.../elderflower-champagne.docx
or this quality article
www.guardian.co....
All which suggest bottling at 1010 -- 1005.
Next instalment in a few weeks and I am still searching for more remaining fresh flowers out there -- not enough in easy to reach places to make another fresh brew.....

[@BirrificandoinCasa]

Hi, with a density of 1005, fermentation should be completed? Thank you.