Tough QQ hand

[microbet]

I don't think it will make a big difference.

It's really hard to say whether you want a call or not. If he has a lower PP or if they both have AK or AQ or something, you do want a call. If he has AA or KK, it doesn't matter.

Calling this time, rather than pushing represents a stronger hand, but I don't know if he would notice or see it that way.

The only time I think I don't want him to call (not counting AA or KK) is when SB has JJ or lower PP and CO has AKs.