I've increased my time to 14:05. January 28th 2020.
Video is here... https://www.youtube.com/watch?v=X7wIPmpGQRE
I think it's time for me to start timing without the wall :-)
I've just increased my time to 11:31 on December 17th 2019. Video is here...
I believe I'm the new leader in this category. 10:33 on September 19th 2019 (not bad for a 50 year old dude). I'll try uploading my video here, but I don't think they are updating this category anymore. My video is on youtube here... https://youtu.be/5v2WluwQIyc