Therefore you need to determine which switch position is needed to "match" which of the 2 switches you are traversing from the main to your "station".
Greg
p.s. it might be worth re-reading the extensive thread we did on this before.
An effective way of knowing 'which way' to throw the switch, is to mount it on your panel so that it switches left and right, rather than up and down. If you want to go to or from your sidings via the left hand track, set the switch left, and vice versa. Worked for me for years. Greg's suggestion of LEDs is a worthy one, not too difficult.... but let's get the basic switch working first, the LED is an easy 'add
in' for later on. I've done just that on the Taita Gorge Railway. I'll dig out the page numbers for you to have a look at.
Edit. Check out posts 226 on p.12, and 261 on p14 of Taita Gorge Railway.