Personally I can't see any reason for tha road to be double-striped. A 'safety' thing for the sake of doing something I guess. On that road, I'd monitor the traffict situation in front and behind. If there's oncoming traffic and cars behind you, control the lane. Otherwise sit a bit further over in the right tyre track. That way, you're still visible and motorists can't squeeze past you in the lane. If they want to pass you (which seems perfectly safe on that stretch despite the double line) it's their call if they want to cross the line. I'd run a bright rear flashing light even during the day.