I was eyeing an Urban Trapper for months, but didn't go for it because I found it was too narrow on the handles and looked like it had not-so-great flipping action (that long, light blade didn't always deploy well enough to engage the lock properly from what I saw in videos). I still loved the design though. Then the FR was released. Apparently I wasn't the only one who wanted something a little "bigger" than the Urban Trapper in the same design.

I think you'll be fairly impressed with the FR. It pockets very well in any dress and is a reasonably capable knife. When closed, it's hard to imagine how big the blade is since it fills the scales quite a bit. A word of warning though. The blade edge is very close to the back edge of the scales when closed and you might cut your hand digging around in your pocket if you press your hand hard against the knife.
The knives with milled clips seem to be the worst with thin dress pants. The Mnandi clip was originally very tight when I got it. I had to hold below the pocket with my other hand to keep from giving myself a wedgie while taking the knife out. Oddly enough, my ZT 562 gives me the least trouble in dress pants, but is a bit too heavy and noticeable.

I find as long as the clip doesn't have too much tension and has a smooth ramp it carries fine.