All of the curves in my layout are 031, due to size issues in my layout. Good enough, . . . but not great.
I've had larger modern engines slow down considerably on these curves, which I just hate because I only run conventional and have to keep nursing the throttle.
And with the S curves, and any new locomotives, the stiff new couplers throw the first car off the track for months, unless I strongly intervene and start bending or weakening the coupler springs. This forces me to run a really heavy car behind the locomotive, which really restricts the remaining number of cars that can be pulled.
I tried to put 042 curves on the outer ends of my main oval loop, but there was not enough room to put the track switches into them, to create my interior runs.
So, the 031 curves are adequate, . . . but I'm definitely not in love with them.
Mannyrock
