I am now a Peco fan! I bought a Peco HO code 83 turnout today and even the slightly out of guage Hornby run great on it. Here are some pictures to try and explain what I mean.
This (assuming the picture inserts correctly) is the front pilot (bogie if you will indulge my Britishness) from my NRM flying scotsman,as you can ever so slightly narrower than NMRA standard.
This is the same set of wheels sitting on the frog of an atlas code 83 RH turnout, notice how the left hand wheel has risen slightly due to the narrow guage.
Same set of wheels on the Peco code 83 RH turnout
Lovely jubbly!
Of course now my plans are a little more expensive…