How about this as a feat?
Shifting Grip
Prereq: Two-Weapon Fighting, Weapon Focus (Glaive, Guisarme, Longspear, or Ranseur), Intelligence 13+
Once per round, at the beginning of your turn, you may shift your grip on your weapon of focus (glve, guis, lngspr, or rnseur), changing its function from a 10 foot reach weapon to a double weapon with 5 foot reach. You can fight with it as if fighting with two weapons, striking with the regular "sharp" weapon head that deals the weapon's listed damage or with the blund end, dealing 1d6 bludgeoning damage (x2 crit). When using your weapon in this fashion, you incur all the normal attack penalties associated with two-weapon fighting. You can use either end as the primary weapon and the other end as the off hand weapon.
Shifting your grip is a free action that must be performed at the beginning of your turn. Can only be done once per round, and *every time you do so drops you back 2 pts in the initiative*. This feat can be taken multiple times, each time applying to a different weapon.
I think this would make reach weapons more attractive to some. At least you wouldn't always need to back off every time someone came within 5 feet of you. And realistically speaking, I don't see why you couldn't do this. Find a long pole or stick and try it. You'll see what I mean.
Shifting Grip
Prereq: Two-Weapon Fighting, Weapon Focus (Glaive, Guisarme, Longspear, or Ranseur), Intelligence 13+
Once per round, at the beginning of your turn, you may shift your grip on your weapon of focus (glve, guis, lngspr, or rnseur), changing its function from a 10 foot reach weapon to a double weapon with 5 foot reach. You can fight with it as if fighting with two weapons, striking with the regular "sharp" weapon head that deals the weapon's listed damage or with the blund end, dealing 1d6 bludgeoning damage (x2 crit). When using your weapon in this fashion, you incur all the normal attack penalties associated with two-weapon fighting. You can use either end as the primary weapon and the other end as the off hand weapon.
Shifting your grip is a free action that must be performed at the beginning of your turn. Can only be done once per round, and *every time you do so drops you back 2 pts in the initiative*. This feat can be taken multiple times, each time applying to a different weapon.
I think this would make reach weapons more attractive to some. At least you wouldn't always need to back off every time someone came within 5 feet of you. And realistically speaking, I don't see why you couldn't do this. Find a long pole or stick and try it. You'll see what I mean.