The article on "magic bullet" looks very intriguing but there are too much math and too little physics for a simple electric as myself, I will be hardly able to use it for phasing 6 verticals in a circle for 80 m band. Since there is some interest to the thread, I add a picture Fig.4 for 4 different variants of HCs interconnecting and zip EZNEC models for all 4 cases. Also Fig.5 is a partly filled-in table of the TLs for various phase shifts and amplitudes for one of the interconnectoins. For example if you want 60 dg phase shift and 0.4 amplitude ratio, see the box in the crossing 23 meters is the direct line 9.08 meters is the feedback line. Input them in the EZNEC model 90/0 and see the result.