supersnap track question - Classic Toy Trains Magazine

so having that isolated rail is good then?

I thought the loco wheels had to pickup electricity from both rails.

I don't want to have to cut the snaps on supersnap, does that mean that I have to buy shadow rail?

If so who has a good discount price on shadow rail? or on gar graves 32"

is gargraves better than shadow rail?

Now that I finally got the money to buy the train and the the rail, i am a bit undecided since I can't really find what I want.

I want a track that is O31 or somewhere around there, can't be O27 (too small for the train I want) and also want it to have a lot of ties, the ties that go under the rail, i don't like the 3 tie only tracks.

How does flex tracks work? should a beginner work with them? I know that's a lot of questions, thanks for the time.