I’m new and building a layout in gargraves here. I want a two+ rail mainline (3 rail track, parallel tracks) and switches connecting through each other. How do I make the curves equal distance while still having the switches without bending connections too much? I know the math regarding radius and stuff but its out the window when I add a fixed distance. Planning o-72 and o-80 or higher. Suggest any other combination to make the distance equal?