Just as an historian You should know: Quantity has no correlation with quality.
As such if You still rely on Yefim in terms of Russian stuff, then all is said about Your credibility on this topic.
I will tell very easily why you are wrong, i did some archaeological work in my youth, so I know how to sift information.
The first thing a historian should do, is being able to understand the language, for example when i did research on the Aztec writings, i knew my first step was understand the language, an Egyptologist needs understand Egyptian hieroglyphs, second is you need to treat what source has direct contact with the event.
Let us analyse Gordon and Fomin, they have written both of them books in Russian language for Russian publisher Polygon Press, both of them have worked together.
Third they have had access to direct sources, or in Russian OKB, basically MiG and Sukhoi.
I asked you do you have sources close to the event? do you speak Russian? do you have direct access to Sukhoi?
If you have the language part, then you need the contacts or the persons close to the event, in this case i said contacts in Sukhoi.
Officially Sukhoi has not said 055 was written off, there your whole argument falls to the ground, second do you have first hand sources some one at Sukhoi you can quote?
No you do not, so as Historian I know you are following very obscure sources, could they be true? perhaps they are correct, and you are correct, but in terms of veracity yours is very low unless you quote some one at Sukhoi you are just following conspiracy theories that is the reason you say the Russians lie, but i know they only will lie at the beginning of the program, not forever, like in the case of the MiG-25 TV program by "wings of Russia Studio" where the designers gave a good account of defects and accidents of the Foxbat.
Your mistake has being treat the source as official unless you give me a quote by a direct Sukhoi official, your credibility my friend is low, it does not mean you are wrong or right, it simply means you can not prove what you are saying.
I know this because some historians claimed the Aztec did not sacrifice people until they discovered Aztec codices and skulls impaled as the ones depicted. Why? they claimed the Spanish sources lied, I mean the conquistadores who conquested and defeated the Aztec Empire.
So sorry Deino, i know history, give me a credible source not obscure sources which are common on the internet and only lead to speculation and are only good for bias accounts