I've got a Shield 9, 40c, and 40 full size. I transition between all 3 very easily. All point the same and even though they each feel slightly different they all feel mostly the same.

That being said, the Shield is carried the most. It is for me more comfortable to carry. Even though the difference in width is small once tucked inside your waistband the larger 40c and FS are very noticeable for me compared to the Shield however this is all a matter of opinion and each individual is different. I don't feel inadequate with the Shield either. With 9 rounds in the gun and another 8 round mag it should be enough to get me out of any bad situation just outside of a terrorist attack. The full size is my primary HD gun.