I agree that the best ride will come from a custom tuned shock. As far as DIY on tuning. I don’t expect to “play” much with tuning. With The cost of tools to properly assemble and charge shocks just not sure I would pencil out vs having them done by an experienced tuner. For the average daily/trail rig I would think a professional would get the tune close. Even then changes can be made relatively cheap.
I can easily see myself trying to learn how to adjust the valving on mine and trying to help others close to me. Part of the fun for me is learning how all this works.