Hmmm decent QC should catch most if not all factory screw ups but then again that costs money so..................................

Now I should address this:-
I am glad I don't own one of those Spartin shot guns
My first ever shotgun was a plain Baikal 12B SxS with 28" barrels 1/2 and full choke and double triggers and NO ejectors. Brought it mail order from my mates Mum's Kays catalogue. It was bit stiff to open at first but a little use and it loosened up a bit butt hat was it it never seemed to get any looser after that. I think it was some preservatice grease for shipping in the knuckle. I brought a plain Parker-Hale cleaning kit in a carboard box which i still have and still use

sadly I let a work mate talk me into selling him the SxS

something i regret. it was a plain workign gun but it was relaible.
I now have a Baikal Mdl 27 O/U with SST and ejectors but again fixed chokes and again it's a 12b and I won't be partign with it. I brought it used and every now and then it was a right begger to open. A trip to the gunshop that had a proepr shotgn smith and it was fixed at the cost of £25 (about $40 US at the time) the enertia block had come slightly lose and when the gun reached a certain angle it moved under recoil and blocked the lever's cam. I was shootign Canadas and Greylag geese at the time.
Baikal made the Spartans for Remington but somehow I think Remington cut the costs to the bone hence the dreadful problems we see reported.
As for the 1100 beign heavy? ........................... hmm I have shot them many years ago but never owned one. Did not find them particularly heavy same goes for teh Winchester 1400 a friend had the impression was that they were very long. In fact it was only the other year I finally scratched a certain itch and acquired my first semi Auto shotgun. It's a mid 50's FN Browning Auto five and yep it's heavy

compared to my Baikal it feels like a club

I did expect it to be different especially to a fine SxS so I don't compare it to the Cogswell & Harrison and the one I have is a basic model 30" barrels fixed chokes DTNE with virtually no engraving. It's the sort a junior Civil Servant would have brought when heading off to his post in the Empire between the word wars or even pre WW1.