The working example is Law Debenture, a Trust that most people would have liked to have owned.

The two periods highlited are the covid crash and the Trumps tariffs last April.
The remainder of the chart shows the usual buying and retracing of the price, no one said it’s easy.

If you buy now most Trusts will lose some of your hard earned, although there are always some winners but it’s still best to earn some dividends to re-invest, just in case your research is wrong
At the covid low the LWDB yield was 7% but that’s unlikely to be repeated.
The current buying yield would be 9%

Having achieved the Holy Grail of investing, you could take out your stake and re-invest in a higher yielder, whilst still receiving income from LWDB at a cost of nil, zero, zilch.

Your breakdown of the topic is so well thought out.