I am sincere, you seem to promote like you are the first at this and that, yet I have these same item on other machines for other manufacturers. I see you added 9/16 orbit, that was a trinity thing for years. I know they have had 1.5 hp machines for years, eraser, padman etc. They have a weight system and always have had, who cares about if you have a star lock whatever... they have had grout brushes for decades, so has orbot, orbitec, challenger etc. Orbot has the "intergrated" weight system, has for years, putting a second jug on a handle doesn't seem too innovative either.
Keep watching orbot, challenger, trinity and orbitec and "YOU" LOL, can come up with a lot of "NEW lol ideas. I have owned and used all the above manufacturers machines, including have a ECO 17, they all clean. Just seems trying to use others idea seems to be your only strongsuit.