Well I'll put mine in too,
6:08
something I have to work on

Got to admit statics can be a bit boring so motivation is difficult.
Hey I like Eric's posts, looks like I've done a few reasonable exhale statics.....
I've done at least 2.30 or 2.40 on a full exhale. Longest negative static(ie full exhale on surface) was a bit over 2 minutes @ 3 meters. Backed off from doing negatives that long now, had a Samba once, totally didn't see it coming, wasn't even a long time.
Negatives can wierd like that, you feel like you can stay down forever, don't feel the urge to breath, well for me anyways.....