Hi! I'm new to diving and this forum. I'm sorry if this question has already been answered, I could find out. So; 2 years ago I got a new set of Aqualung Helix Pro regulators. I have not used this on land or in water, and have been storing them in a dry environment. The manual says service is required every 2 years. Is it necessary for me to get them serviced before diving with them. Technically I'm past the 2 years. Thanks!