@Dexter More importantly, why aren't you training at Frolov Boxing School right now? That place seems like boxing heaven. I'd totally move to Moscow just to train there if I lived in Russia.
1. Why exactly Frolov

? We still have hundreds of old trainers preparing amateur fighters by the Soviet school standards, each with their own preferences and style. For example, one of my trainers:
Unfortunately, when this generation leaves, it will be replaced by people of a completely different level.
2. I am not a professional boxer, it's just my looooong time hobby. I competed as a low-level amateur (in 63,5 kg category) when i was a student, but now i'm 38 and 80 kg and train only 3 times a week.
I loved reading all the posts you have made so far. I am curious to know what boxing trainers (and drills) from the 3 countries you named and other non soviet linked countries you hold in high regard. Maybe if you have more questions about those systems some of the more knowledable posters could answer some your questions.
Thanks, mate. I ocasionally stumbled by this thread and thought that i can help somehow with better understanding of soviet boxing.
I have a lot of questions, but some of them are completely childish, and some I have not yet formulated to the end, so this will wait

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Regarding boxing schools in other countries...
I fell in love with boxing when I first read the short story of Jack London, "The Mexican" and watched а wonderful movie based on it:
So, from that moment on, I'm a big fan of mexican boxing (also, I really love Mexican food and this is the source of old inside jokes in my gym - guys say that in a past life I was Mexican). I grew up on fighters such as Duran, Barrera, Morales, JMM, Ricardo "El Finito" Lopez, JS Chavez-Sr., Johnny Tapia. My favourite coach is Ignacio Beristain.
UK: Chris Eubenk-Sr. and Nigel Benn. Fantastic dilogy. Also, Nigel Benn vs Gerald Mcclellan, real tragedy.
US: the hardest part, i like a lot of fighters - Arturo Gatti, Sugar Ray Leonard, Sugar Ray Robinson, Mike Tyson, David Tua, Roy Jones-Jr., Rocky Marciano, Sonny Liston, Joe Louis, James Toney, Shane Mosley. Favourite coaches - Freddy Roach and Roberto Garcia.
Other: Miguel Cotto, Felix Trinidad, Wilfredo Gomez.
Of those who are fighting now, I follow Naoya Inoue, Nonito Donaire and Saul Alvarez, Vasyl Lomachenko, Manny Pacquiao and some others.