Hi and Welcome to the forum! :D
We do have several resident experts on blowmolds on here, but not sure if they'll be active this time of year. There is always a small core group that visits year round, but the place gets hopping around July with all the planning and building.
In any case, you can try using the search function to seek out blowmold threads from the past and hopefully some folks that have some knowledge will pop in here and help you out at some point.