A method of improving electrical transmission through an electrical contact assembly comprising an insertion object having a longitudinal axis, a housing having a bore receiving the insertion object therein, and a plurality of coils of a canted coil spring in electrical communication with the housing and the insertion object, the method comprising: reducing an electrical resistance between the housing and the insertion object by providing an electrical path length between an insertion object contact point, defined by a contact between the insertion object and at least one of the plurality of coils that contacts the insertion object, and a housing contact point, defined by a contact point between the housing and the at least one of the plurality of coils that contacts the insertion object; reducing the electrical path length by about 20% to 50% compared to a direct path length of the housing contact point and the insertion object contact point, when the housing contact point and the insertion object contact point are arranged opposite to each other on the at least one of the plurality of coils, by: providing a groove having a depth, in the bore of the housing or on the insertion object, said groove having two parallel side walls (210, 212) which side walls are parallel to each other for the entire depth of the groove, and a bottom wall located between the two parallel side walls; providing an axial canted coil spring in the groove; and characterized by: biasing the axial canted coil spring against the two parallel side walls of the groove but spaced from the bottom wall to define two contacts for each contacting coil with the groove, the two contacts for each contacting coil with the groove increase a number of contacts for each contacting coil with the groove from a single contact with the bottom wall to two contacts with the two parallel side walls. reducing an electrical resistance between the housing and the insertion object by providing an electrical path length between an insertion object contact point, defined by a contact between the insertion object and at least one of the plurality of coils that contacts the insertion object, and a housing contact point, defined by a contact point between the housing and the at least one of the plurality of coils that contacts the insertion object; reducing the electrical path length by about 20% to 50% compared to a direct path length of the housing contact point and the insertion object contact point, when the housing contact point and the insertion object contact point are arranged opposite to each other on the at least one of the plurality of coils, by: providing a groove having a depth, in the bore of the housing or on the insertion object, said groove having two parallel side walls (210, 212) which side walls are parallel to each other for the entire depth of the groove, and a bottom wall located between the two parallel side walls; providing an axial canted coil spring in the groove; and providing a groove having a depth, in the bore of the housing or on the insertion object, said groove having two parallel side walls (210, 212) which side walls are parallel to each other for the entire depth of the groove, and a bottom wall located between the two parallel side walls; providing an axial canted coil spring in the groove; and characterized by: biasing the axial canted coil spring against the two parallel side walls of the groove but spaced from the bottom wall to define two contacts for each contacting coil with the groove, the two contacts for each contacting coil with the groove increase a number of contacts for each contacting coil with the groove from a single contact with the bottom wall to two contacts with the two parallel side walls. biasing the axial canted coil spring against the two parallel side walls of the groove but spaced from the bottom wall to define two contacts for each contacting coil with the groove, the two contacts for each contacting coil with the groove increase a number of contacts for each contacting coil with the groove from a single contact with the bottom wall to two contacts with the two parallel side walls.