Thanks for sharing these information.
I am not an expert in Shermans but a former member here who is an expert on M4's said that as an OOB kit it is very nice and good. However if you are into accuracy, he said that there is some problems in the rear plate of the hull (I think the slope was wrong or soemthing) that requires a lot of work to correct.
Dragon is about to release a better kit which addresses the said acuracy issues.