@SLOfizz, thank you for the response.
The leaks are with the top down. I don't know if leaks with the top up as I haven't tested that yet. So far, John has asked me to release the tensioning bolts that anchor the front of the J30 to the rollbar. This will allow the top to rise so that I can inspect the mold, and (theoretically) when I retighten the bolts then the J30 gasket will reseat itself in a better position. Based on pictures that I sent him, John thought that my gasket appeared more compressed than the gasket on UMV's Jeep. This is apparently his first step in troubleshooting the issue.
@JDaPP has been very helpful in sharing his experience as an early adopter. His leak issues were caused by water infiltrating the top via the perimeter of the hinge mechanism and along the tensioning bolts. He was able to remedy this by applying silicone to those areas. If John's idea doesn't fully solve my problem, that's what I'll try next.
My main problem is that I can only work on this during the weekend, so progress will be slow. I'll keep the board posted.