Pocket carry works for me, and is my preferred mode.
Exclusively carried the 642-2 Airweight pictured for several years (yes, I'm left handed). But since getting the Shield in July, it's been the go-to EDC.
I typically wear the "comfort" style pants, as I appreciate the extra room and like pants to fit a little looser. The Shield works well in virtually all pants, except those with slightly smaller pockets. The Shield's height (top of slide to bottom of flush mag) is a fraction too large to permit a smooth draw. It's doable, but in a life and death moment, I don't want a firearm getting hung up. So, on smaller-pocket days, I'll slip the j-frame in there. It's slightly shorter, and the rounded grip makes it easier to draw and present. That said, I'm comfortable, content, and competent with either of them.
Shield weight is manageable in a front pocket, but if it was any heavier, it wouldn't be. It's right on the edge, and is noticeably heavier than the Airweight. Sometimes I have to reach down and feel for the j-frame just to make sure it's still there.
Concealability is excellent - I use Kramer horsehides for both.
Try it and see what works for you.