So - you still don't tell us anything about you - I wouldn't hold any confidence in ANYTHING said by someone whose background I wasn't are of. eg on a 'car' forum if I had engine problems, I would listen to the advice of a person who has said he's a mechanic and may have evidenced this before based on the correct advice about something else engine-oriented which I knew to be correct but I wouldn't listen to my advice since I admit freely to knowing sweet FA about engines, have never worked with them or done anything whatsoever to do with the motor trade except typed estimates and invoices for someone who was involved in it.
We have already explained - as we always do - why WE individually regard testing as essential - however you disagree with that - you need to explain exactly why you say that, which explanation needs to be sufficiently persuasive to change our minds completely, to have a snowball's chance in hell of anyone doing that volte face. If you are not prepared to say in what way YOU were persuaded it was 100% correct - how can you expect us to even contemplate changing our minds?
Thing is if you only try one way, and then in 20 years time your legs drop off and your kidneys fail - it's a bit bloomin late to see if a change in regime might help, isn't it?