oclhash question about length

[pyr]

Hi,

Maybe a stupid question, but, as written in the oclhashcat documentation :

Code:

Charset: 0123456789
Length: 8
oclHashcat.exe hashes.txt -m 0 -o res.txt ?d?d?d?d ?d?d?d?d

If I need Length 9 which is the best/faster :
oclHashcat.exe hashes.txt -m 0 -o res.txt ?d?d?d?d ?d?d?d?d?d
or
oclHashcat.exe hashes.txt -m 0 -o res.txt ?d?d?d?d?d ?d?d?d?d
?

Thank you.