Yup, you got it. This is most noticeable when printing on fibre papers; RC paper will exhibit either no drydown, or very little. There's another thread currently undereway that is discussing drydown, btw.
Originally Posted by David Ruby
A very simple way to avoid drydown is to inspect your work prints under a dimmer-than-normal inspection light. If your inspection light it too bright, then you'll be forced to print the highlights darker to get detail. Using a dimmer inspection light will help you avoid this effect.
Regarding exposure, I've never used times for creating proofs for determining exposure times for larger prints - the enlarger is almost certainly at a different height, for one. Contrast is generally different as well (contract printing vs. enlargement); the exposure for your proofs is therefore not really applicable to your real enlargements. Instead, setup your enlarger, and take a stab at what the exposure will be. After a while, you'll be quite good at zeroing in on the right exposure, or close to it.