[quickthrower2]

Thats why I think the approach ti estimates and project planning should be: developers are trusted not to slack off and not to over engineering it. So it takes as long as it takes. But if it might go up an order of magnitude talk to the team to see if it is still worth doing or how to reduce scope.

Instead of the usual estimate, negotiate the dev down, use a mythical man-month then bollock them for not getting it done on time (ok these days microaggressions are in fashion as you can’t outright yell)