First of all I want to thank everyone for all the information and knowledge you provide to a beginner like myself. Alot of professionals are to proud to share this in there trade. I appreciate you all. My question is that I got my system all rigged up last night (graversmith, airtact, airtact monarch handpiece, and compressor) and was wondering if it is normal for air to always slightly be leaking from iside the air piece and airtact unit while you are not actually engraving? Thanks.