[Djay Pro] How to lower headphone pre-cueing volume?

So if I pay 50$ and buy this version, will get this update for free? Assuming it is fixed soon? How do upgrades work for DJay?

There is no sound system to speak of. I am using my mac’s internal speakers and extra pair of headphones for previewing through an USB sound card.

Does anyone find that the sound effect (samples) are playing too loud through the headphones when pre-cueing?

Is there anyways to adjust the level that they come through the headphones without decreasing the level that comes through the speakers?