C# - SHA1 + Salt Password Hashing On Multiple Servers

So, I am the approach David Hayden posted on his blog [URL] to create a salt and hash the user's password by taking the user's raw password and the generated salt and using SHA1 to hash the value. I then store the salt and the hashed password in the database. zhe website is currently load balanced, so I was wondering if resulting hash value would be the same for both servers. Here is the snippet of code posted on David Hayden's blog:

private static string CreateSalt(int size)
{
//Generate a cryptographic random number.
RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider();
byte[] buff = new byte[size];
rng.GetBytes(buff);
// Return a Base64 string representation of the random number.
return Convert.ToBase64String(buff);
}

private static string CreatePasswordHash(string pwd, string salt)
{
string saltAndPwd = String.Concat(pwd, salt);
string hashedPwd =
FormsAuthentication.HashPasswordForStoringInConfigFile(
saltAndPwd, "sha1");
return hashedPwd;
}

The reason I ask is that this code uses the code snippet: FormsAuthentication.HashPasswordForStoringInConfigFile(saltAndPwd, "sha1");