It seems like you think the white spots and white blobs are different things? Maybe post a pic?
Could be stearic acid spots or glycerin rivers. If you HP, it could be some overcooked bits.
I don't know of a website, but you could send a private message to some of our experts here. That way it's not floating around forever on the internet.
You could also post an approximation. Made up example: Say your soap is 50% lard, 20% coconut, 20% olive and 10% sunflower. Post a recipe that is 40% lard, 15% coconut, 20% olive and 25% sunflower. The advice you get will probably be pretty close but you keep your exact recipe a secret.
Regarding ash - I really think that a dehumidifier is a huge help with this. My soaping buddy DoriettaFarm lives about 30 minutes north of me. We both use similar recipes (lard, coconut, olive, castor), similar weather, etc. I use tap water and she used (I think), distilled. She has more problems with ash than me. I cure my soaps in a finished basement with a dehumidifier. That seems to be the only significantly different factor. Even my salt bars are fairly ash free.