Allow me to throw in my little piece as well.
I bought the JS1, two years ago, very cheaply as the guy had heard about the gap issue. DMLs JS1 and all three JS2s are based pretty much on the same hull design, so all have the gap problem. The JS1 kit is basically one of the JS2 kits with an extra sprue for the earlier model´s parts, and an extra sheet with instruction where to use the JS1 parts. The normal JS2 instruction is included.
Along with a different barrel and mantlet there is a different grab-handle arrangement around the turret. I think there is a slight change in periscope arrangement as well on the turret roof. These parts are included on the extra sprue.
I didn´t relish the thought of adding 1mm around the entire hull tub as I thought line-up problems afterwards would be a bigger probelm. I sanded quite a bit ofthe bottom of the fenders and also sanded a little of the top side of the return rollers and re-rounded them ... not visible unless you actually go looking for it. It looks Ok to me, but is maybe not the best solution for perfectionists. I also believe it was quite common that all fenders were removed or torn off, so this could be another option.
My JS1


Once upon a time, one of tamiya´s best kits ever was their JS3. Photos were taken in Berlin at the end of the war (the celebration parade?), but it is not known if it actually saw service in WW2. I think tamiya´s is an earlier version of the JS3 than trumpeters. I believe there are some inaccuracies with trumpeter´s kit also. The JS3 is supposed to be the fore-father of modern Soviet armor. Tamiya´s kit is a perfect build .. really easy, quick and no fit issues. The figure is even OK! Would benifit with friul tracks though to get the right sag.
My Tamiya JS3


Theres a good article on missing links by Antonio Martin Tello, where he builds the JS2 and the JS2M. Click here for the
The Stalin Brothers The DML T34s are the best in town as word goes, and include all the extras for a fine model (indy tracks, pe, barrell .. but check reviews for what exactly is in each kit). Before them the Italeri/Zvezda were king. I believe the tamiya kits suffer because of motorisation ..some angles, etc are off. If you go the cheap way the Italeri/zvezda kits are quite good and indy tracks are available from maquette. One of their kits has an interior in plastic also. They sell tracks and transmission as sepearte sets if you fancy some cheap extras.
Good luck Jim ... the russian heavy tanks are so cool. Eeverybody should have a few!