Hopefully in the next few weeks I will be getting the BLI stealth Mikado but unfortunately I did not read the fine print and ordered(and received) an ESU micro which apparently can't fit the stock partially due to the speaker. While I could exchange for a Nano, returns are a pain, and the stock speaker is mediocre at best anyway. My Bachmann connie has an esu 11x15 with the full baffle so about 9.5mm high total. However, I'm not sure if I'll be able to fit that in the BLI. I was wondering if a smaller baffled 13x18 would produce similar or better volume than the 11x15 with a bigger baffle. Or ideally, if anyone has experience installing a larger baffle in a BLI mike. Right now I'm looking at the CRude engineering 13x18 medium baffle which would be 7.65mm total or the medium large which would be 10.65mm total.