In 3 1/2 years flying 121.... here is how I see it..... The crew should be ready to push when the door closes....taxi normally, no need to use the SWA method just normally... be ready to go when its your turn number one at the end...fly the flight planned route, fly the planned cruise speed, call mx control when its appropriate. Then let the chips all where they may.....IF your block times have been adjusted to be very hard to over block then hell, just get there. My thing is fly by the contract no more ...no less.