Hi Ticker, I wondered about this line and thought it looks wrong but the comment "RouteArc will normalise " distracted me. I interpreted this as "RouteArc will correct it" Should have double checked. Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Ticker Berkin <rwb-mkgmap@jagit.co.uk> Gesendet: Dienstag, 15. Dezember 2020 11:50 An: mkgmap development Betreff: [mkgmap-dev] arc direct heading Hi Gerd In the October changes to arcs and headings I mistakenly removed a variable needed for setting reverse arc direct headings, ie half the route nodes had the wrong value. Routing mostly worked with this error but occasionally threw up strange decisions on my eTrex HCx. Patch attached - sorry about this. Ticker