Fellas, I have come up with a very effective opener. The Extreme AFC opener.
Basically you are deliberately freaking her out with a mega AFC desperate first paragraph and then chilling with a normal 'Im actually just a cool guy' second paragraph, has worked very well so far but then my follow up to their response keeps falling flat.
1st Para goes like this: you need to channel the 40 yo virgin and then turn it up a notch again... you can make up the first para yourself but it would have things like

Im getting goose bumps, you are sooo HOT! You wanna have kids, what 2, 3, 8?? Lets get married next week!? Please say yes I NEED THIS!!!!! Im gonna show your pic to my grandma! Ive never felt this way before... something... I dont know we have this magical connection!!!

All sorts of crazy shit like that, you really cant possibly overdo this first paragraph. I also chuck in alot of capital letters like 'Lets get married NEXT WEEK!!' so emphasize the craziness. Its doubly effective against hot chikcs with no text in their profile (the only effective approach I know of for such women). Then you chill back with a normal second para:

hahaha hey Im just a regular guy lookin to make some friends on here, so talk to me. If not Ive got this voodoo doll of you here and Im stick headphones on it and make it listen to the Scissor Sisters!!!

Actually the voodoo doll thing I picked up from elsewhere. Anyhow...
Responses, all from 8+ have been good.
'Whats your name?'
'Not the Scissor Sisters!'
'Thats the funniest email Ive read in ages!'
'haha your funny'
'bet you say that to all the girls xxx'

Problem is after coming up with my best opener yet, Im totally stalling out on the third email. I need help guys...
I could bust em for being into desperate spycho guys... I dunno, Im onto something good here but my 3rd emails are totally falling flat. Need some help compadres.

PS PLEASE dont use this on girls from Sydney on www .rsvp.com.au hahaha
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...also and this has got me totally blown away... I reply to her reply (one which has def IOIs) and she doesnt even read it! Ive even done this with girls online at the time. Wtf is going on here? Isnt she keen to hear what Ive got to say since she liked the opener?