Reply to "20-inch radius curves vs. 36 diameter curves"

I have been modeling in 2 rail for many  years.    When I first got into, there was not even flex track, we had to hand lay our track.    My current layout is mostly flex track with a bit handlaid.     When I commented it just never occurred to me that people think in terms of fixed radius sectional track.      Every radius/diameter issue I have dealt with for years has not had that kind of restriction, so 36 in radius vs 40 inch radius is a valid question - is a difference and may be significant.     I had no thought of over riding sectional track restrictions.