Estimated time difference using --increment vs. mask length?

[v3rd1ct]

I already looked at the wiki/faq, you pointing me back there is not helping.

What would be helpful if you could answer my question instead of sending me back in a loop.

When we run:

Code:

hashcat64.exe -a 3 -m 1000 --potfile-path oppy.pot --username -1 ?u?l?d!@#$ --increment --increment-min 9 --increment-max 9 oppy.ntlm.txt

The input mode mask is:

Code:

Input.Mode.....: Mask (?1?2?2?2?2?2?2?3?3) [9]

I already set..
?1 = ?u?l?d!@#$

What is the default character set used for ?2 and ?3...

Before you point me back to other links, I did read everything related "Hashcat mask" and I am still confused, as such I came here looking for answers not links.