Hi, I have a 2011 Cardo g9 System. I'm wondering if there's any reason I should upgrade to a newer version. My daughter uses the Sena 20S. I have a Shoei helmet and I see Cardo makes a unit for Shoei. Does anyone know if there are upgrades in usability or sound quality since 2011? I am assuming that like most electronics, motorcycle intercoms have probably gotten leagues better in 7 years. What say ya'll?