A solution to NOT drill your track forks and have a normal front brake nonetheless

There's a lots of solution to your problem;

Different fork.
Drill a hole.
Keirin removable brakes.
Drum brakes.

All those solution work well, even the drum one which my grandfather use to ride to/from the track.

I'll ask you this;

What advantage does the wedge system have over the other solution?

different fork: there are a gazillion reasons why you want to keep your fork.
drill a hole: no.
keirin removable brakes: large, bulky, just not nice
drum brakes: no.

I do know a better solution than the keirin removable brakes which many in this thread already liked and welcomed, I will test it, I will share the experience.