Whatever you choose it has to be strong enough to support the aero load and light dings but break free at a somewhat limitted contact force.

Pins dont really cover those criteria if you are making good aero use of the thing, ive been thinking about T6 aluminum flat stock, notched. But i have to run the math to see how much to notch and what cross section does best. Its not as easy to use as a bolt, but should give the desired results.