Im not as much worried about pooling with this system as I am about fuel distribution. Our intake manis were designed to flow only air, not fluid.. so there is no guarantee that each of the cyls. will get equal amounts of "extra" fuel each time. I'm not saying that the system doesnt work, there are lots of setups that have run this system with a lot of success (see these cars:
http://www.sdsefi.com/eic.html and here
http://www.sdsefi.com/features/oct01240.htm - although I'm not too sure about the 2nd one, I think Adam either blew his car up or he is selling it, I cant remember which), but the technique is kinda crude... Corky Bell says in his book (Maximum Boost: Designing and Installing Turbocharger Systems) that extra injector setups should be limited to about 8 psi, and that it is not really an ideal method.
I dont mean to shut down the idea at all, Im just opening up the discussion on the topic here. Too many people (Im not saying anyone specific) are all too willing to just jump on the newest and cheapest without thinking or researching at all. Check Corky Bell's book out, and do some looking around before you make your decision, that's all.
WD, please let me know if I got anything wrong about your setup.