@JammedStab, of course that is sensible and quite often done. Although the Boeing performance software tries to go for lowest engine rating first. Anyway, on contaminated runways and those with a reduced braking action we are not allowed to use the ATM method, but we can of course use derates as derates will allow a better performance in these cases (lower possible V1). One has to be aware of the caveats as pointed out by John tough, it can get nasty very very fast if one advances the thrust at a V1 of 98kts just because one engine quit.