One other tid-bit of information is that I never rely on the winch for single strap holding the nose. I use a strap, not a wire, on my winch.
No matter... I still put an extra strap on the nose to the tonge. I welded a small loop on the tounge for this strap and it holds the nose down onto the "rest pad" on the tonge.
The rear straps are both held to the two rails of the trailer at the rear ( a must have item in Ontario) or its a huge ticket and fine!
In essense...never trust just the winch strap/cable alone. Add a second tounge strap, not only to pull forward as does the winch, but also to pull downwards for bounce along the road.