A method details injecting water into a gas turbine engine to facilitate cleaning an inner surface of a combustor. The inner rope is more elastic than the outer tubular rope, and has substantially the same length as the outer tubular rope. The method includes reducing the powertrain braking by a predetermined amount. The location of the pocket region, formed butting only the top portions of the sides of the heavily doped sourcedrain region, reduces the risk of punch through current while limiting the impact of junction capacitance.