I'm about to start building calls again and I'm wanting to really dial in my dimensions. How would you guys go about it I'm starting off with 10 walnut blanks. I'm thinking of making then all glass over glass and changing one thing at a time untill I get my sound to where I want it. I'll be taking notes the whole time so I can eliminate as many variables as I can. But as far as dialing it in what dimensions would you be paying the most attention to. I know this is a bit of a loaded question and know that any dimension change will make a difference in the sound buy what do you think plays the biggest roll? Also I used to always hollow out my pedestal but what would it do sound wise if I didn't hollow it out?