QUESTION: Where is the advantage in having inboard genoa tracks and chainplates?
ANSWER: There is a substantial advantage when going to windward. An advantage because the headsail can be sheeted in tighter. This allows the hull to be pointed closer to the wind direction. A tacking angle that takes full advantage of the optimum 12% thickness NACA foil keel. The ability to point higher,  results in a greater VMG (Velocity Made Good: Resultant speed directly towards windward destination).

Advantage of Inboard Genoa Tracks and Chainplates

Without Inboard Hardware

Tacking angles of 100 to 110 degrees. May foot slightly faster but overall VMG is substantially reduced by up to 30%.

With Inboard Hardware

Tacking angles of 85 to 90 degrees result in higher pointing ability with resultant VMG as high as 30% greater.