Wonka1981

So just about a month and a half ago, I had several oil leaks fixed on my '00 cherokee, including a new oil pan gasket, valve cover gasket, and front crank seal. It still looks pretty good and dry underneath, but today I just popped my head under to notice a very small leak at the front of the oil pan, right where the new rubber is. The leak is not big enough to drop to the ground yet, but I just wanted to know if it is a big enough issue to take back to the shop to have them fix. I know Jeeps tend to leak, so I just wanted to know if there is always going to be a small bit of moisture, or should a new gasket keep it bone dry and take it back to be fixed.
Thanks
Also, since i am seeing so many posts regarding the infamous '00 head issues, at what point should I be concerned about dropping coolant levels. How much is normal evaporation, and what rate of loss should have me worried.