Hatsan Spark inner fan configuration

Hey all! Ok so while doing some work on an Hatsan. The fan configuration should be sucking up from the bottom blowing on the head and out correct? The one mounted in back would it be better blowing out of the housing? The reason why I’m asking is I’m mounting a .2 amp fan on the external of the housing to help with the blowout, wondering if anybody experimented with setups to get the ultimate cooling done, thanks)