I have the smallrig grip and thumb grip. I do like the grip but the jury is still out on the thump grip. Due to the rubber piece being small there is a degree of flex and I find the lower edge sharp. The grip is great I cannot fault it. Regards the size of the camera being close to one with changeable lenses, there are times when you don’t want to change lenses. I’m shortly going to an area that’s dusty, the last thing I want to do is change lenses. I don’t want to damage my XH-2 system by the ingress of sand. Thus I have a X100iv. It has its place.
Too close to interchangeable lens camera… you nailed it, as usual. I bought the X100V back in 2020 and I never considered it pocketable. X70, XQs, GRIII are pocketable, but this is not. JJC should include their brand in the inner side of the thumb grip (I opted for other brand because of this).