I've enjoyed meeting new tradesmen over the years and the myriad of ways we have of doing the same thing. It's kind of like sidewinder saws versus wormdrives. East coasters and DIY'r types tend to prefer sidewinders, while west coasters prefer wormdrives. Both saws do the same thing, it's user comfort/preference. Back on topic, it's the same with drywall techniques. Ultimately, as long as the job is done properly, who cares what tools you've used (no matter how silly a hod and trowel are ... ).