I have no experience with GRN, but FRN is strong stuff and it feels great in my hand. I wouldn't want every knife in it (Some models are more suited to it than others IMO), but it's very strong and lightweight...it does feel "Plasticky" because it is, but it feels like strong plastic...which it also is. My first Spyderco was this model...the FRN Native, and it shrugged off a 275 foot fall onto gravel (Closed), and you'd be hard pressed to find the impact mark...I'll include a photo from about that height for context. The Delica, Endura, and Stretch are all great knives in FRN, and they have recessed liners which help them feel stiff. The FRN Native does not (Neither does the Dragonfly), but the smaller length negates the flexing proponent enough such that they don't need recessed liners. My Goddard LW is quite large (About the size of the Military), and it has no liners and as such will flex some, but not nearly enough to concern me and I use it with no qualms whatsoever. The Salt line also have no liners or washers (Easier to keep clean this way...you'll understand what a big deal that is to some after you read some of Surfinggringo's posts lol), and probably flex a little if you intentionally try to flex them, but you'd be VERY hard pressed to actually break the handle. Someone tried to take apart their broken FRN Manix2 (Broken blade...I don't remember the name of the person but if I find it I'll add it in edit), and he had a hell of a time breaking it apart (It's pinned so breaking it was necessary). Bottom line: Don't be scared of or discouraged by FRN.