Hey!
Sorry this is kind of late, I was piled with work recently... anyway, I just had to come here and saw the bad news...
's tough luck on you. Using myself as an example, 700(Q48 V38), your score should be pretty close to 700 now (I think you're on Q44, V35 right?). Q44 to Q48, perhaps a matter of about 3-5 more questions correctly answer, and V35-V38 probably around that too.. I don't have an exact figure though...
But the most important thing right here is getting there. Are you using OG11? If so, maybe you want to get official quant and verbal books for some more practice. If you're on OG10, then forget it, you have probably seen every GMAT question.
Some other sources:
-> Paper test. Not computerized, but still a good workout. They can be pretty easy, but still good practice nonetheless. Sometimes we focus so much on the tough questions we forget about the easy ones...
-> Did you try upstartrising (or upstartraising.. I'm not sure about the name). GMaxOnline uses it, so I figure it can't be that bad. I personally don't use it myself.
-> Have you used Kaplan and Princeton CATs? I know their questions and scoring is crap, but it's still pretty good workout.
I recall I went full-steam on CATs after my initial prep. Firstly to get used to staring at a screen (can be different from reading off a paper), secondly to force myself to endure close to three hours on the computer, and lastly to make myself comfortable with a CAT environment (their interface can be different, but heck...) I guess right now with most of the groundwork done, all you want to be doing is CATs and more CATs
Keep plugging away. I'm sure one day you'll get the 700+