So now it seems we know why the PS3 version has lag in it (http://www.gamesas.com/index.php?/topic/1303536-new-vegas-developer-comments-on-ps3-lag-issues/), is it only a matter of time before memory issues hit the 360
So a little test:
Post your game time, file size and if you have lag or not.
Lets see if there is any common theme regarding lag, as ive read the odd topic saying there is lag on 360, but cant seem to find a consistant theme
Best way to get lag:
Play the College of Winterhold quests. Stick shock in each hand and on the quest: Hitting the books run in like a troll on moonsugar and all the mages, including those with you (and Lydia) shoot at it other, knocking stuff about. I made the mistake of fighting 4 spellcasters with the dude you meet and I casted a fire explosion spell (can't remember the name but the one that surrounds you in 20 ft of fire). It took me 3 minutes to turn around and run when I realised I was about to die. lol. Thats when Lydia blocked the door. And with the greatest look of contempt she mumbled.
"Get back in there you [censored]. Your not leaving till the jobs done." And so Ollathair the wise old breton with his crooked nose, startling blue eyes, beautiful grey beard and hair. Whom had took Lydia under his wing like loving farther. A man of love. Got smashed in the back by a fire ball that sent me smashing into Lydia's shield (which I gave her as a present). At which time she said:
"Hey, watch where you going!"