The funny thing about the 70E is that it states in 110.8 to not do any energized work and is followed by about 30 pages of how to work on energized equipment.
Working hot because it is easier is not allowed. The term feasable according to websters is "Capable of beaing done, possible" is shutting down the equipment and placing it in an electrically safe working condition (LOTO, voltage check, grounded) possible? Thats the question you should be asking your self.