normaly i would agree, but i like to see different varients of pre-exsisting aircraft when the differences in the versions are very drastic.
1 seat V's 2 seat not drastic enough for you?
Different engines,different ord packages depending on time frame.
Early war arena compatible,better rear views due to no armour,or light armour depending on time frame.
IL-10 is a huge change than our current IL-2.