Yeah, I guess it would. Like you I'll see how it goes with Biggles'.
Youse have shamed me into getting a round tuit.
Photo 1 shows plenty of clearance between the pin and the brake lever- at least 2mm
Photo 2 shows the bevel on the brake lever that the arm sits on. Tony machined a bevel on the arm but it doesn't match the lever's bevel very closely. Yours may be different at that point.