I have been following along with your build, David, and it is coming along very nicely! I read your comments about the injector stacks and I would like to suggest something to you, (I hate hijacking threads). I have built this kit and posted it here, a quick search will find it. I replaced the kit stacks with electrical ferrules. They were inexpensive and it was an easy upgrade. Just a thought and a friendly suggestion. Keep up the good work and keep on posting these updates!