Go to the high limit NL forum, and find one of the March graphs from some of this sites best players.
it looks from the original snapshot, like it's a pretty steady line heading north in the good direction.
save it to your desk top.
open the picutre and zoom in.
then zoom in again
then zoom in again.
And look at the kind of swings they have over a very short term, say 1500 hands.
Then look at your 2 buy in swing, and compare.
That's how *I* got over it.