We've all been caught out east coast to PER, back of the clock, in winter. Just one of those realities of life, met and best endeavours with forecasting notwithstanding. Very hard to be perfect when the crystal ball is its usual fogged up self but very nice to have a Plan B up your sleeve.
In the olden days, there were a few management examples of pushing the boundaries which very nearly came to grief. A 727 taxying in at CBR with engines spooling down comes to mind ....
I far preferred having a think about things and, if warranted, putting a bit more on for mum and the kids.