Revision-Resubmission Advice

email and ask her. Have you revised the entire novel or just the submission pages?

Personally I would wait and allow the agent to finish reading the original partial. Wait and see what they have to say about it...I'm afraid if you sent a new partial the agent might wonder if you're just another "flaky" writer. You're supposed to only send out your best work. If she rejects you, then you can ask if she would like to see an updated version of it.

However, Orion has a good point. What would it hurt to e-mail her and ask?

I guess that wasn't very good advice! Good luck and let us know what you decide to do!

With your revisions being in the first 50 pages they sound relativly minor. You got feedback from a partial from the other two agents which in fact may be a stock reply "MC was unsympathetic" etc. which, while it may be true, may not be a deal breaker for another agent.
It may be better to move on and query other agents with your new and improved partial/first pages.
I was in agony while my agent was reading my full as I edited again and made some what I thought were major changes. But it was only in my writerly mind. She said don't sweat the tweaking. After she offered representation she worked with me through things that she thought would improve my novel. They were all relatively minor.
My point is...if an agent falls in love with your story they will see through these minor tweaks. If they don't love it -it could be perfectly wonderfully written and they still wouldn't bite.
JMHO

I've been wondering this question myself, only the changes were to the full manuscript. I have an agent reading the "old" full, but I've since revised the ending at the suggestion of another agent. I'm wondering if I should email the agent who hasn't yet responded and see if she would like the "new" version instead. Oh, and it's worth noting that the changes were at the suggestion of another agent.

(If you'd rather I start a new thread on this, Pisarz, I'll gladly do so.)

Deadly-
This is what I agonized over. Bottom line no rewrite is going to "make" the agent love your book. I had a long conversation about this with my agent. What we writers think of as major, the agents call tweaking. That precludes any obvious grammar/syntax/spelling issues. Keep that full in the background and wait for what the agent says. If she passes and tells you her reservations and encourages you to resubmit then by all means make another pass over your manuscript including your new edits and send it.
If you still have other agents on your list then keep making passes through your manuscript including changes YOU feel would improve your book and query them. I can tell you that out of 15 agents three bypassed my partial and asked for the full, three asked for partials and one of those that had a partial said she had problems with the structure of the novel and suggested MAJOR changes, two others with the fulls both loved it as is and offered representation. My point is EVERYBODY has their opinion. Only YOU know your vision for your novel.
IMHO beta readers at this point in a manuscript give the most useful information.
Good Luck,
(what ever you do - do NOT bug agents when they have the full...my agent called before she offered representation basically to see if I was normal or nuts...a week later she called to offer representation...)

That's what I was thinking, ORION. I want her to have the best book possible, but of course, that's never going to exist. So I'll just keep plugging away and sending queries until I run out of agents and continue to write more books in the meantime.

I don't know how common it is but when I was first querying with another project several agents communicated that they would like to see other projects but were ultimately not interested in my current one. What happened to one of my author friends is her agent worked with her (editing her manuscript) for quite a while before submitting to publishers.
I think what many agents are afraid of is signing a writer who would not be able to make the necessary revisions competently and quickly enough and that is why they will allow resubmissions...most likely to see how fast and how well you can do them. If they feel the work is really close though - they sign you.
I hope this helps