SWR testing 1:1 common mode choke balun design from TRX Bench

Testing SWR on a 1:1 balun common mode choke found on TRX Bench channel. Please see the link below to review his excellent work. I cannot test common mode attenuation since I do not have the right equipement. The only thing I can test is the SWR across all HF amateur bands using a dummy load and my radio. I think that it will prove that impedance seems to stay stable across the bands. Please visit TRX Bench videos about the BalUn subject. #101 Balun PART 2: Balun's magic and how to wind an effective working Balun (that is the particular video where I took the information to build mine) https://youtu.be/JhAPJISUjB8 #100 Balun PART 1: Broadcast Interference, Common Mode Current and Balun's magic https://youtu.be/kMlKfHHR8FY #105 Balun PART 3: How to build an effective working 4:1 Balun for 800 watt HF power https://youtu.be/P7wW4TtXmc8