Yes you are correct in saying that if that certain technique suits you. If that technique dosen't work for you and you are more comfortable playing the way you want, hence stuff like holding the sticks, your posture etc. go out the window. Lots of drummers and I would say most drummers play the way they are comfortable and sort of come up with their own technique. Now that may bring certain pain when you play or at least when your warming up. Yes you are correct for sure if your are brought up with a good technique it will go easier for you. Please remember i have been playing since age 4 and I'm 52. I did my first paying gig at age 10 so having said that the repeat motion will get you sooner or later. Personally it only hurts when i play if I dont' warm up. The only thing that will start to hurt if I don't warm up enough before a gig are my thumbs. I guess what I'm trying to say is some players play with pain. Buddy Rich did he had arthritis , max Weinberg has to stick his hands in buckets of ice when he's done. After you do it for a long time your going to experience some pain that's all I was saying. You don't have to as you stated and I totally agree with you there, but at some level pain is involved.I have to strongly disagree that "pain is a part of drumming." If something hurts then there is a better way of doing it technically. Technique takes time & smart practice to develop, but it's worth it as it makes everything easy and pain/injury free and ultimately more musical.