Deck spring repair

How to repair a spring.  Well, bodge a repair to a spring.  This spring is pretty large - say 30cm total length.  The hooked end snapped off with what looked like a manufacturing shear defect after only around 20 years service.  Spares are available but around €20.
I simply got 2 cage terminals out of a 4mm din rail terminal which where the same width as the spring steel.  Then I found some steel of the same diameter, put a hook on one end, then overlayed on the spring steel and tightened down the terminal clamps, locking them  with thread lock.

As this spring takes up the slack on the deck blade engagement, when it's engaged, it's pretty well stretched out.  OK after 1 hour.