I started out trying to use one rig for everything. When I started cave, it took a dozen dives for me to get the cave rig just right, adjusting it fractions of an inch at a time. After all that effort, I sure wasn’t going to try to readjust every time I switched to some other type of diving. So I bought a rig specifically for cave. Glad I did and never looked back.
So, when people talk about readjusting their harness for different types of diving or using the same rig for all, I’ve been there, done that, and chose a different path.
That’s why I chuckle when people say, yeah but the harness is re-adjustable. It really isn’t. It’s tuneable, as in it can be fine tuned, but it’s not adjustable like a BC.
There are now these adjustable rigs. I almost bought the Halcyon one. But, I realized that I didn’t want to be able to adjust it. I want to fine tune it, lock it in, then forget about it.