Not Wholly accurate. The only way CP increases the jump times is because the further you jump the longer it takes. However with WP and CP mixed you can jump very far with almost zero power up time. With the added WP a max range jump won't take anywhere near as long.

I've been testing a hybrid build, but haven't found one I like yet. Which is how I know this. I do, however, think Baron is two squishy for no armor, probably my play style, so I don't think this build would work for me.