Lynn at LC Performance recommends the TDR's or Stock reeds in ported stock cages over the VF's, Snop has dyno information in the General discussion disproving the claim that VF's make more power. He even found that they make less, and that was running the stuffers. I port all of my own reed cages, it's not difficult. I wish I was able to post pics for you guys. I just knife edge the bridges and clean up the outer edges of the windows so they are smooth. Then I make them have a smooth/roundish contour from the screws to the pedal opening. Hope this helps.