That I understand. I didn't use the W-2's I have because I just don't need them. I don't want a roll bar, and quite frankly, I spent enough time sitting in tech lines, with a rule book trying to show block headed bracket race tech guys how rubber lines from the barrel valve to each nozzle doesn't constitute a "connection", explaining that if the tech guy wants to see the cert sticker on my bell housing he can pull if off because I'm not doing it, and of course, all the discussions required when the fuel tank is up front and the pump and shut off are all right there, but I don't have a low oil pressure shut off switch built into the fuel system.
So I get that part of it. At that point, they should have made the head with T/A offset rockers to clean up the outside port wall.
I've already posted I'm not a fan of 4 inch stroke anything using a head that doesn't have an offset rocker. I've done it, but when you see the numbers, it makes you sick knowing what was left on the table.