If you would like to get into details on my thoughts on my BRW4 parts I will explain and add files for you to excamin.
I use 5 mm distance between the ordinary magwire and the change wire at start of change and 10 mm at trachpiece-connections.
I have not made my straights 2ways as they can be flipped.
BRW4-track-parts-100cmX
BRW4-track-parts-100cmX
Racing Regards
Kim K.
Kim K.