I would not recommend using RTV on the gasket as it will slide out much easier. RTV in the corners and a spray tack type gasket spray to hold the cork is best.
My 2¢ :)
Rope might work better in a high mileage engine with some wear on the crank surface.
But a crank in good shape will definitely perform well with a lip seal.
Rope for shoes :lol: Good one! lol