basically, start the chamber as normal then portal peak a portal onto the roof and then quantum crouch launch up, place a portal out of bounds then teleport to next to the elevator and PQR back in bounds, I discovered this while messing around with quantum crouches. the demo explains it better, took me few attempts :/ Demo: https://drive.google.com/file/d/1-OHFcFIAUFZivfuxXjIsm6ApG7IcRBNf/view?usp=sharing
i also discovered a variant in chmb19 and its similar to the pre-steampipe route, tbh, i think inbounds and oob should have pre-steampipe and post-steampipe categories, i can tell you 1 thing tho, oob on post-steampipe will have A TON of quantum crouches
It was recently discovered that it is possible to set your mouse sensitivity to a value so high that the game considers it infinite, leading to several new glitchy techniques being discovered.
The rules have now been amended to ban these new techniques in both Inbounds No SLA Legacy and Glitchless.