We use a pad holder it clips on any channel can make it to go over or under the channel.
The plus is you do not have to unclip to change pads.
THIS IS NOT MIND SET UP note the connection on the squeegee.
THE CHANNELS A SORBO.
Here's Eric Gilliand did the same with the connection.
Just saying it's out there are probably more people that have done this also.
Also got remember it has all been seen in the public domain and can not be patented.
Unless you have a unique swivel connection that works differently to what’s out there at the moment.
Then this may be patentable.