Well, my very first attempt with Pilot #1 finished yesterday, four days after hanging. The silverside dried beautifully. But the taste was, frankly, awful. Far too salty. And even though a little moist on the inside, there was no deep red colour - it was dark brown all the way through. This first batch is a write-off; the loss is just over a kilo of prime Karoo silverside. School fees.
I suspect the 24h soak in a bath of vinegar was far too long. And I probably used far too much worcestershire sauce in the vinegar. My intuition had been that the vinegar stops the meat from going vrot so the longer it soaked in the better & safer. Turns out that's not quite right.
For Pilot #2 now underway I'm following Ben Kruger's method as per his
YouTube video here.
In about ninety minutes I'll stop the vinegar soak, pat with paper towel, apply homemade billies spice mix, let it stand an hour, and hang the meat by the time wife wakes from her nap at 16h30 or so.