Marta: Your Cap locks are on.
I may get flamed for this, but, comparing a SA 1911 or any 1911 to a 97B is a bit odd. The 1911s use a 6 (Officer's Model), 7 (GOv't, Commander or Officer's), 8 (Gov't & Commander or 9 rd (38 Super & 9mm) magazines and, for some shooters, easier to grasp. Weight, based upon what configuration of 1911 you're comparing to, the 97B is lighter ( 97B =2.4lbs and a bushing fitted 1911 is 2.6lbs) or it's significantly lighter than a 1911 (97B = 2.4 lbs and a SA TRP Operator with Bull Barrel & Rail = 46oz, with Tungsten FLGR = 49oz!!)
97B 10rd magazines, 1911 7 or 8rd magazines. Magazines for the 97B are limited by manufacturer. The 1911 not so much. The 97B limited grip panel choice, 1911 the sky's the limit. 1911s first shot Single action, 97B either SA or DA, unless it's a 97BD.
I think you are starting to see what I mean by the disparity in comparison. A better comparison would be, perhaps a EAA Witness in 45acp, or a SIG 220 to a CZ 97B or BD.
Best yet go shoot one!! In my case I owned (1) CZ97B. It was a fabulous shooter. Excellent accuracy, reliability, and finish. It was just too big for my hands. I own (26) 1911s. Obviously, they fit my hand just fine. There are a huge variety of 1911s Gov't, Commanders, and Officer's model frame sizes, 9mm, 40, 45acp, 38 Super. I recommend one of each.