Ref my rifle, could I make it lighter, sure, does it change its characteristics in my hands, heck ya. I have gone two ways on changing rifles; sometimes it's for the better and I love it, other times I wish I never changed it and I spend more to get it back, haha. Why I actually went to an R8, all my rifles looked the same just different Cals because I liked a certain fit. My UL rifle sure as heck doesn't feel the same, it can shoot though. I'm of the mindset that, yes, in theory you carrier your rifle for that one shot, but that one shot could be the shot of a lifetime.
It's easy I found out this year to drop weight else where.
I guess too I have a military background and never could choose the rifle I carried, just what else I packed.