I built a 142.5l Adire style sub that was orignally designed for the famous Shiva. After looking over the gain graph in WinISD it looked like "upgrading" to the more expensive Dayton Titanic MK3 would give me more SPL and a flatter FQ. I didn't notice until it was too late that the Dayton is considerably less sensitive, and will actually play quieter than a Shiva. I could probably switch to the Shiva with no cost to me. Do you guys think it'd be worth the trouble? I'm unclear if I'd be gaining or actually loosing any performance by doing so.