NTLM Cracking

I'm trying to predict how long it would take to crack different length NTLM hashed password passed on the WU's and was having some issues. As soon as I tell Cryptohaze that the --min is 9 characters, it just sits there and doesn't do anything. I've tried both standalone and networked and they both give the same results. I compiled from source so I have the newest code. Are the WU's a standard size across each password search space? Thanks.