The 6P is a little large for EDC. I recommend a L4, E2e, A2 or if the length isn't to long for you a L2.
The L4 comes with the Z57 clicky switch and is great with a Pila 168S rechargeable battery. If you are going to use your light every day for less than an hour a day this might be the way to go.
The E2e can use a KL1 if you want a Luxeon LED to increase runtime.
The A2 has a regulated incandescent and 3 5mm LEDs which gives you throw and flood. The A2 has about 50 minutes runtime on high and about 20 hours on low.
The L2 has about 8 hours of regulated runtime on low and about 45 minutes on high.
The G2 and 6P are both good lights, but the lights I recommended are better for EDC because of size and features. For example the bezel of the E2e is about the same diameter as the body of the G2 & 6P. Meaning the largest diameter part of a E2e is about the same diameter as the smallest part of the G2/6P. The bodies of the E2e, L4, L2, L1, A2 are about the same diameter.
If money is the deciding factor and you are going to carry your light in a holster, you could get by with a G2/6P. The KL3 is pretty big.
If you can afford it, I recommend either a L4, L2 or A2 depending on your expected needs.