Thanks a lot for additional comments & compliments since my last reply.
Tigerman, I sleep very well because it's not me who built all those models.
I'm just lucky to have found several helping hands - 'Art Instructor' for
armors and dio's, and 'Niphon' for aircrafts and ships.
Thundergod, the T-34 was built OOB same as all other models on my site.
For this T-34, 'Art Instructor' told me that the instruction sheets direct how
the hull parts should be cut and pasted to make into 1941 model.