Presently I am preparing a new layout using K-track as I am a real fan of K-track: flexible track, slim turnouts, very nice design, large radii, and absolutely no problems with electrical contact so far...

Only thing which I definitely dislike are these switching tracks 2229, 2239, 2299. Sometimes they cause a contact interrupt, and this is very annoying for digital locos. When the slider is on the contact tongue there a power blackout occurs sometimes, but not always: loco sound is interrupted, motion is jerky, or even complete standstill at low speed. I thoroughly cleaned the contact tongue and its bearings, corrected the contact braces, checked whether there is something wrong with the puko height, etc. Some improvement, but no real breakthrough.

Of course, I'll also consider to use reed relays, light barriers etc., but it should somehow be possible to work with those switching tracks. So any advice appreciated.

With M-track switching track I don't have this problem at all.

Hans Martin

I personally am not a great friend of these switching tracks, be it for M or K.

I'd go for insulating one of the rails and get the contact made by the wheels. Of course, this assumes that your application can deal with multiple contacts being made by the same train (or you use a relay).