I often use the SRAM method for Shimano brakes. Also, I find pushing fluid up from the caliper works better than draining it by gravity. Perhaps more interesting, I get a lot more dirty fluid out when I push the fluid up from the caliper via a syringe. I think it does a better job of purging the fluid adjacent to the pistons (which is where the dirt will most likely be). The other advantage of using one or more syringes in a bleed is you can apply negative pressure, which is a great way to remove gas (air bubbles) from a fluid.