Panther97,
If you use the right noise suppression set up, they end up making about the same amount of muffled noise, lots of different ways to deaden the noise factor with both kinds of track. Guns is also correct the newer RealTrax is no longer solid rail, I own both types of RealTrax, and I do like the solid rail better. My inside loop is completely solid rail and I have never had any problem with it, course it stays assembled and screwed down, all the time, it's definitely not the kind track to take up and down all the time, the electrical tabs get damaged to easily. Once set up and screwed down correctly, all my different trains run smooth as glass on it, when no MTH switches are involved.
PCRR/Dave
What is the recommended noise suppression setup for Fastrack? I have an OSB type of material under it. It did the job with the Realtrax. I'm game to try something else with the Fasttrack. I like the solid rail as well. Do not try to combine the solid and hollow rail with Realtrax. That doesn't work well.
