Stealth aircraft geometry is complex, but not that complex for the most part (or it'll literally be affected by dust, temperature, and so on).
There are assumptions taken with regards to RAM, primarily no-ram. You're comparing that with required 0.3 sqm.
Yes. And no matter how many factors he includes in his model if the resolution of the model is too low it won’t be representative.
and as it is said that's the case with f-35, it provides something. Do you have any links to more comprehensive public rcs analysis?
That there's nothing better available in the public domain doesn't imply that what your friend did has any value.
It very much implies that it has value when nothing better is available. The level of resolution and RAM modeling applies to all the models. So the comparison remains apple to apple/orange to orange. Until something better comes along, this will have inherent value.
Sometimes no facts are better than inaccurate facts.
Accuracy is a continuum. Also, now it seems that a few here have the pursuit to not find the facts but to hide and blur them.
You are not in a position to find any facts about the J-20, neither is he. It seems I need to put this impolitely - the modeler is too incompetent to model the J-20 correctly at even the coarsest macroscopic level and you are too thick to understand that.
Really, there's no need to hide behind euphemism and artifice to save someone's feelings. Tell us what you really think!