1,500pt All Foot GK Lists (RTT Next Weekend)

I'm taking a quick break from my batreps since it's the weekend and they just seem like a ton of work right now so I thought I'd share the idea of an army I might run at 1,500 next weekend. I'm kinda in love with non-mech lists right now for some reason so this is going to be a GK all-foot list.

HQ

Inquisitor-80
Psycannon, Terminator Armor

Inquisitor-80
Psycannon, Terminator Armor

Elite

5 Purifiers-144
2xHalberds, 2xPsycannons

5 Purifiers-146
3xHalberds, 2xPsycannons

Troop

10 Strike Grey Knights-240
2xPsycannon, Psybolt Ammo

10 Strike Grey Knights-250
2xPsycannon, Psybolt Ammo, Hammer

10 Strike Grey Knights-250
2xPsycannon, Psybolt Ammo, Hammer

Fast Attack

10 Interceptors-310
2xPsycannon, Psybolt Ammo, Hammer

So you have some speed in the form of the Interceptors. Tons of St5 shots spread throughout along with Psycannons. 14 Psycannons should put a dent in most mech lists and 52 models isn't something easy to take out in 1,500pts. The Purifiers add some horde control with Purifying Flame as well as add extra Psycannons which should be helpful.

I'm torn between the above list and this:

HQ
Grandmaster-175

Elite
7 Purifiers-146
5xHalberds, 2xPsycannons

Troop
10 Strike Grey Knights-250
2xPsycannon, Psybolt Ammo, Hammer

10 Strike Grey Knights-250
2xPsycannon, Psybolt Ammo, Hammer

Fast Attack
10 Interceptors-310
2xPsycannon, Psybolt Ammo, Hammer

10 Interceptors-310
2xPsycannon, Psybolt Ammo, Hammer

It's got less Psycannons (10 instead of 14) but it has more flexibility. More speed, similar number of models, but the ability to adjust better to the mission through the GKM as well as a best of a CC character if it's needed.

Thoughts everybody?