T&G
Thanks for that - shame our Grob didn't have this mod!
I agree with your point about the fuel, but I was the first to fly it after its annual, and groaned when I saw that the engineers had re-fuelled it to "full" (though, of course, they hadn't really!!) - but a quick weight calculation revealed that we were ok to take off on a full tank (both myself and instructor are rather light on the scales).
With hindsight.... well, let's just say a full fuel gauge will now cause me to check who fuelled it last . . . I.L.A.F.F.T as they say.