Ok, to use the 3rd slot you have to:
1.- Save a profile without a weapon in the 3rd slot, and take off everything.
2.- Equip a normal weapon in the 3rd slot.
3.- Double click in the saved profile.
4.- Start a match.
5.- When it's loading, restore the profile.
Your 3rd sloted weapon will be in real time... so you should wear only 2 fumbi weapons and a normal or a perm weapon in the 3rd slot.
Sorry for my inglish...
1.- Save a profile without a weapon in the 3rd slot, and take off everything.
2.- Equip a normal weapon in the 3rd slot.
3.- Double click in the saved profile.
4.- Start a match.
5.- When it's loading, restore the profile.
Your 3rd sloted weapon will be in real time... so you should wear only 2 fumbi weapons and a normal or a perm weapon in the 3rd slot.
Sorry for my inglish...