Eric does not always respond to new knife queries or book queries. If you are in the books, he will email you when your time is up or if there is a flash sale. The good news is when you get the email, he makes your knife in a couple weeks.
If you have a knife issue, he responds righty away. I had him make me a new LSCF scale for my solo v5 dama and he did it in a couple weeks.
Just be patient.