Still the confusion between contrast transfer and resolution.
There is a tool for explaining this the FTM curves.
Please consider also that the 6" was able to catch the banding pattern, nothing else.
Uranus is mainly under the difficulty of capturing low contrast levels, about the resolution ability we have enough.
What is sure now over the 3 years intensive observation, contrast levels are fluctuing with time, featuring is changing. The contrasts levels turn around 2% maximum, visual channel, and this is the node of the difficulty, 2% on the planet not at the scope exit.
Conditions of observations are crucial and light glaring has to be avoided. Seeing levels must be also well quoted sothat the observation of a close star and its diffraction pattern is to be performed. Under 10/10-6/10 range the observations are practicable, there are always calm times under these 6/10. David exposed very well these points more than me and his valuable experience.
Now for being positionned against an own ability to catch tiny low contrasted features like on Uranus, everybody has the open possibility to visit a Laboratory for assessing their eyes, that I did. If you are courageous you will refer to previous posts of me with the lighting conditions necessary.
This shall be more prolific rather than futile discussions, it will cost you 300 about for making this an afternoon. You will see what is glaring light with measurements with the optician, stress conditions, light accoutumance, etc...
I was dubitative before, pretty confortable now.
Up to you if you want to progress or staying still on outmodel views.
I donot know a telescope that shows a contrast level more than it is on the planet visually, except with using electronic devices.
Now for sketching, sorry for the amplified appearance, we have lot of guys who doesnot catch the 2% level so with such sketch this is lost by advance with 2% percent drawings.
You have all the data well quantified for the observationnal problem quotation.
For conclusion here is the report of the 30th.