Rags28 Aug 2018 10:00
You're trying to read too much into mate, yes, things won't be 100% right first time, but generally you have these things (as best as can be, and I know WP do) add in "Contingency Times".
I'm really not bothered unless a major piece of equipment was to fail, but in a case like that, generally there would be clauses in the paperwork which made the suppliers responsible, then it's surprising how quickly they move in such cases.