I agree with you in some applications, but not all of them. It is the same story with redundant batteries/switches, switching to A123 cells from multiple NiCd or NiMh to save ounces, carbon gear from aluminum, wing tubes...the works. We all learn eventually that it is not a single component choice and weight savings of a few ounces that makes a difference, its consistently choosing that way, when appropriate for the model and flight performance desired.

One example would be the 24oz tank I used to fill completely on a G62 powered ultimate, which I replaced with a 16oz (still more than I need), and the 11oz slimline wrap around muffler that was replaced with a 3oz alternative that ended up performing better. I understand that fluid ounces are not weighed similarly, pending the type of fluid, but it does add up! Losing a pound on a 16 lb model makes a BIG difference. I wouldn't treat warbirds like I do Imac or 3d machines, I like the locked in feeling the added weight provides in the warbirds.