Welcome aboard Dreadnought!! Like the others said of the SV-51, Ivanov 1st edition is a bit loose, Most of the Nora's are tight, but some are loose too, (See the Collection DX video). But if you want one, get the Mass production SV-51 version, not everyone's cup of tea for a paint scheme, buts shes tight as a rock and perfect for customizing!!
Mine is still boxed up, But I'll be doing a SU-35 Flanker Camo pattern with that one some day soon, Give Dobber a run for his money!!