Higher numbers on the second discharge is a good thing. Thats the amount of Mah removed from the pack. When the numbers go down on each cycle, that means time to toss the pack. The amount of mah on a charge is how many mah has been put back into the pack. Usually the charge mah will be a bit higher than the discharge mah, but sometimes can go the other way depending on the temp of the pack and amount of time between the discharge and charge cycle. Batteries can recover some mah on their own after sitting and cool down, but not always, depends on the draw.
Also, charge/discharge on a new Nimh is essential to a good battery life. I did that to two of my Venom packs when I first got them, and they have a longer life than the one I didnt do it to when new. They are all the same size 5 cell mah packs.