..... LOL .... That Round "Bumper" on the top was actually part of the original prototype design.
Put a round steel “bumper” at the top, nothing to rope on and it would be scary as hell trying to balance on to bring the ladder up and move it to the other side of the wall.
Remember the most athletic in shape young Pedro might still get over, but Jaunita his pregnant girlfriend/wife isn’t neither are his kids. And that is more important
and most of the pictures of them sitting on top, those are areas where it is only 15 to 20 feet tall. 30 feet is a whole different ballgame.
..... LOL .... That Round "Bumper" on the top was actually part of the original prototype design.
Nobody is going to pull the ladder up and setting it down the other side. You are going to rope down the other side.
To scale a 30 foot wall you need a 35 foot extension ladder for the 12 foot setback needed for stability. The ladder would weigh about 80 LBS. Putting one of those on a fence will cause a lot of noise as you pull the extension up and bang it on the fence. It will be enough to trigger the sensors. Climbing it will also trigger sensors. Roping down the other side will need mountain climbing experience and lots of luck. That 30 foot fall will kill.