I have mentioned above, that I DO ACTUALLY RINSE and always have done, but with water and have never had any problems with this, also, I have suggested that at the end of the day, the attitude, application, pride and a desire to deliver value, can often give superior results, over many, who may have all the theoretical knowledge in the world, but fail to apply themselves.
Obviously, the products used, method of delivery, quality of aggitation and thoroghness in rinsing will have a major bearing.
This is one of the reasons, I've always been a fan of the CFR system.
You are absolutely right about " the eye of the beholder "and just yesterday I had the great pleasure of calling in to treat a spill in a regular's home...............What was pleasing, was the fantastic condition of the carpets we'd cleaned six month's ago, particularly, as they were in a pretty sad condition when we inherited the client from a worldwide franchise company.
Incidentally, I was only commenting on our good fortune in having, naturally acidic water, with the obvious benefits, but was curious about the response I might get !!!!!!!!!!!!