Yup, the pinky finger takes awhile to catch up.
I gravitated to songs/licks that require the pinky and made them a part of my regular practice and warm up routines (i.e., John Frusciante). It helped a lot. Exercising my pinky on my guitar improved my typing at work, which in turn improved my guitar fretting. Once I got some momentum, it was hard to stop it. I saw improvement in strength and flexibility almost daily.
Sometimes you gotta force yourself to use something until it becomes second nature.
Nothing is anything until it is written. After that, it's everything.