But that's not what he did.
If the shutters were closed it is not clear there would be enough sill to grip. I don't happen to believe that the shutters were closed.
When he demonstrated how easy it would be to open the shutters he lowers himself from the ledge to put his feet on the top bar. It would have been better had he climbed the lower window bars with the shutter in place and then demoed the opening and closing.
His work clearly shows that the window was not a feat for Spiderman.
The only climbing history for Rudi is his alleged "climb" to the balcony of the lawyers' office that was burglarized. It was different because there was a balcony similar to the one on the other side of the cottage.
But that's not what he did.
True enough, but really Grinder, that is all he had to do.
Why would there be a problem standing upon the bars, as opposed to the sill?
If the shutters were closed it is not clear there would be enough sill to grip. I don't happen to believe that the shutters were closed.
if you look closely at 1:26 ands 1:29-1:31 you will see that he has his fingers on the sill.
I am not sure that it matters, since there appears to be a 4 inch section beyond the right shutter.
I agree with you that this demo could have been much better, since the cut outs to view the spectators interrupt the flow of the whole demo.
I think that he should not have used the upper window bars in any way, since they were not there at the time of the murder.