@mismi,
when i was a wee lad i would oil my mitts.
the only other thing i'd do to break them in was play tons of baseball.
it worked wonders on my 2nd one, which turned a dark shade of brown, and was amazingly soft.
that mitt was stolen from the trunk of our car.
damn, i miss that mitt...
five years ago, i realized i should get myself a new mitt.
i decided to try breaking it in without oil, which is effective but messy.
it's pretty well broken in now, but does tend to dry out in the winter...