I've been wondering about this. If you have a weapon with an enhancement bonus, does it add to your BAB to get an additional attack? I know that if you have a BAB of 4 and an enhancement bonus of 2 that you now have a BAB of 6.
Now my confusion: It says that every time you reach a +6 in an attack you get another attack +6/+1. So if you had a character that normally has a BAB of +4 would that character get the BAB of +7/+2 with the enhancement bonus of 3. You've reached the +6 requirement to get an extra attack but would you actually get it?