The point I'm trying to make Robbie is that if you can look at a perfectly clear drawing of two switches linked by 3C+E, with one of the switches having a twin & earth cable dropping down from the light, and been told in writing that your drop cables will be twin & earth still think that maybe the way to wire it is with "one light switch connected to another using the 3C+E cable and the 3C+E cable goes to the the/ one of the lights" then for whatever reason you just cannot get your head around electrical stuff, and therefore you should leave it alone.
Something this simple should not be a struggle . Something this simple should not need more explaining than those drawings provide. Something this simple should be "oh yeah - I see exactly how that hangs together, no problem".
I do not see it as this site's role to "inspire" you to do work on something you clearly cannot understand.
Good point well put and unfortunately too often appropriate.