Okay this can be done when you get too the Archytte Steppe.
The area of the leveling place is called "Western Benchland" on the map.
This can be done when you reach Chapter 11.
This can be done as soon as you gain access to this place. It's the giant "World Map" of FF13. It's on Grand Pulse.
There's two battles you have to fight. I can finish both battles and walking to the next battle in one minute. Sometimes 1.5 minutes. This is obviously still good. Do the math. 60 minutes = 372,000CP.
I use Lightning, Snow, Fang. I have Accessories on that boost Str. I have weapons on them that have high STR.
Have all three in Commando and all with blitz learned.
I control Lightning. I use blitz with her twice. I then recall the last option(Go to ability and hold right and it redoes your last action) I do this till the group is dead. Fang and snow usually use blitz also and the group dies quick.
Obviously you can use your own party but this is the best IMO.
Watch out Rangda have a strong Aero spell and they can summon a strong monster. Kill one quickly if he tries to summon. Uusually they all die way before they summon.
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Screen Shot 1 shows the world map of Archytte Steppe. I circled the area of the map you have to go too.
http://img117.imageshack.us/img117/1286/mapworld.jpg
Screen Shot 2 shows where the two battle are you have to fight. You will see the monsters there.
http://img62.imageshack.us/img62/4347/map2xe.jpg
Screen Shot 3 is a picture of the monsters you have to initiate with at Fight 1.
There's 5 Rangda(Tough battle if you werent kinda leveled getting here, but should be easily doable) 3,700 CP is awarded and some items.
http://img689.imageshack.us/img689/71/fight1.jpg
ScreenShot 4 is a picture of the monsters you have to initiate with at Fight 2.
It's a few weak Chickens and a Randga. 2,500 CP is awarded.
http://img704.imageshack.us/img704/2228/fight2n.jpg
Go to Fight 1 and beat them walk to Fight 2 and beat them. Walk back to Fight 1 and they will have respawned! Cha Ching!
Finish both fights in 1-2 minutes and you have 6,200CP and probably a few items also. Put on Collectors item to recieve more items.
When you first arrive on grand pulse and start doing missions you will realise there is a ton of hard monsters to fight. You can do this leveling as soon as you arrive there. I maxed out the Crystal grid for all of my chartacters in under two hours.
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