Well… yeah… ABH solves everything.
Using the same technique for the cylinder hop in prison_05, I produced this. IT’S A BITCH TO PULL OFF THOUGH. Seriously… this was a result of at least a hundred tries.
It’s possible to shave a couple more seconds off in Phase 2. This is only 1 second slower than HL2DQ, but we can definitely go to ~10 seconds.