Hardly any suds with gg3/4, thats the whole point. With trad cleaning its not the suds that do the cleaner, mainly its for glideability of the squeeqee, which does the cleaning work.
But also washing up liquid is too foamy and thats why need to experiment to get the mixture right. Also star drops was great for no suds! I couldnt get on with the smell of star drops.
I cannnot understand some comments about streaks due to this reason and that reason. The only two reasons would be technique and not correct mixture. All boiling back to user as is the case with perhaps not replacing the rubber often enough. Either way, on trad cleaning there is very little running costs once you have the equipment etc, so scrimping on rubber changes shouldnt be one of them. This saves wiping the edges etc, saving time n making more money...
Sorry, a little of point