subject to taxi terrain and traction concerns did it as a standard in the old Airline-cuts down on brake wear too on the V2500 engined 320(high idle).Not too much fuel usage,,call ahead with freq'changes to avoid stopping ,remember to taxi at least 10k..
Not too keen on the one engine taxi out,except in unusual circumstances,Long long taxi,or atc stoppage..A snap on the B727
Cheers
