i understand fully where your coming from,why take 6 cleans when you can spend twice as long on them and sort the spotting problem in 3 cleans,however this does not work,you still have to spend a long time on them at first to get all the frames spot on this will stop dirty water running of them but the rubber seal soakes up a small amount of water you are using and a percentage of that water has soap in it after all thats what you have just took out of the rubber seal then it soaks a smaller percentage back.i know it may be hard to understand but once that rubber is soaked then water just runs over it thats why i think you need a few cleans buy hey in a ideal world you would just do them for ages first time and that would be that sadly it doesnt work like that and this is the theory i have come to.