[nuclearnerd]

Thinking about this a bit, the wall of the castle is going to interfere since it will push your frame perimeter towards your extension (the rung is only a few inches from the wall). So if you were going to rotate while climbing, you need to tilt wall-side down. That said, you could tilt down at least ~20 degrees (at the base of the tower) before the frame perimeter rule cuts below any extension reaching for the rung. Don't tilt back though!