Has anyone done this or something similar? what were the benefits?

I wouldn't really try that sort of crap.It sounds like the guy from Neil Strauss' The Game, remember him? And as far as I can remember, Style held him in a negative light.I think the problem with a challenge like this is, apart from putting a lot of unnecessary pressure on the pua under the challenge, is that it could fall under the "quantity over quality" category.The best way, in my opinion, is to open a set whenever you see fit-as in your everyday life.
I'd love to hear from someone who's actually done something like this?

_________________
Treat dem mean to keep dem Keen
Nice guys finish Last.Start your Evil-lution

Well I imagine the benefit is that you're sarging like it's some science experiment, and you'll come back with statistics about what does and doesn't work that are more accurate than most people's since there will be so many "trials". And if you can, try and record all the variables. You'll have to do 16 or 17 a day, so good luck if you do decide to do it.

The benefit is that it helps you get over approach anxiety VERY VERY fast

Style doesn't like Tyler Durden for his own reasons. Don't go along with whatever Style says just because he says it. Make your own opinion. Read both their material, and then decide. They both know what their doing, so either way you're fine.

There's no need to record anything unless you want to. I'd personally say stay away from it. The idea of Pick Up is to become natural. That means relying on nothing, so if you practice with nothing, you'll learn to PU with nothing much better.

_________________
Mimicking an artist never leads to true success... However becoming an artist mimicked is true success

that would be pointless unless your planning to try and do 1000 sucessfull openers in 60 days