Generally I'm pretty satisfied with the success rate with the castings for the wagon kits but there are always a few which for various reasons emerge from the mould with flaws.
Fortunately they don't all go to waste.
I have a customer who is also happy to decorate his South African-themed layout with scrappers as well as runners, and all those rejected bits are perfect for the job.
So far I've made up a battle-weary B wagon and a DZ that's seen better days.
Waste not - want not, and all that.