It's also my first attempt at a video tutorial in years - like since it was actually on "video tape," not digital. It was trickier than I remembered, but digital editing is a lot more forgiving than editing on a tape deck.
So check it out and let me know what you think of the tutorial - especially the video. I know it's kind of a specialized subject, but if you have any interest in modern 3d design and printing, the video might have some useful tips and tricks.
I was honestly really impressed with how useful parameters are for doing design iterations. Setting everything up for the first time can be time-consuming. But so is designing any object from scratch. The payoff, and it's a huge payoff, is that once you have the parameters set, you can make hundreds of design changes really quickly and with almost no effort.
Small tweaks that could have taken hours now take seconds. So if you are hesitating on taking the plunge into the new world of "parameter driven design" - well I strongly encourage you to jump right in. The rewards are tremendous for anyone who does complex design work.