Usage of --increment-min ?

[Mem5]

Hi,

I would like to start from lenght 9, so I launch (oclHashcat-plus-0.09) :

oclHashcat-plus64.exe -m 0 -a 3 -i --increment-min=9 -1=?a hashes.txt
...
[s]tatus [p]ause [r]esume [b]ypass [q]uit => s
Status.......: Running
Input.Mode...: Mask (?1?2?2?2)
..

Why does the mask contain 4 characters while I set --increment-min=9 ?

The same thing happens if I specify the mask :

oclHashcat-plus64.exe -m 0 -a 3 -i --increment-min=9 -1=?a hashes.txt ?1?1?1?1?1?1?1?1?1
...
Input.Mode...: Mask (?1?1?1)
...

How can I force it to start at len 9 ?

Thanks