as I consider to build this kit, studied some materials regarding design of the Il2m3. I noticed there is a mistake in Tamiya´s kit. Have a look at bottom surface of wing. There are holes of ejectors for VYa 23mm cannons. Pattern of holes is mirrored acc.longitudinal axis and this is wrong as VYa-23 were not produce as left and right versions. Just see attached pictures. May-be you´ve already known it, may-be important point for those who will build it as same as me

