Johnny Walker Blue and Red have already been aged enough by experts,
don’t think you can improve on those, better monitor and taste them
often, I wouldn’t want you to ruin a good bottle of scotch. The
tequilas will surely improve but again taste them often because in the
beginning the small new barrels will do their job quickly and you
might get too much flavor but if that happens you can always blend it
with some more tequila that hasn't been aged.