I've only seen half stamina climbing used in TASes, and I think it's an underrated tech, so I made a map.

Download on Gamebanana: https://gamebanana.com/mods/442675

A half stamina climb starts with a wallboost. Immediately after the wallboost, there is a 1-2 frame window where you are close enough to the wall to climb back towards the wall. You get the height from the neutral climbjump, then the height from the second climbjump, at the cost of only one climbjump. You also return to the wall sooner than a neutral jump.

You can bind a single button to left, right, grab, and jump to simplify the "turn around and climbjump" input. After a neutral climbjump, you press the direction away from the wall, then on the next frame, press this keybind.

If you slide into a wall to setup subpixels like you would for a ceiling pop, this ensures you have 2 frames to do the half stamina climb. I find that getting the rhythm for the the 1 frame input is not too bad though.