Denti - it is plain that Boeing do not consider the low fuel drill NECESSARY until 403 a side, so a little commonsense could apply here. The last time you want to be doing an unnecessary drill is when you are tight on fuel ie near alt + reserves or even reserves so my brief was either to get it out of the way early or wait. Putting reserves up to 1900 is just dumb! That would make around at least 26-3000 landing minimum! Did they go out of business perchance?