Update, LIFE IS GOOD! After setting the tire pressure I checked it yesterday morning before a ride and it was spot on. When I checked it, I didn't get a complete air dump which prompted me to check it multiple times trying to make it fail, couldn't make it die. As to modifying the keeper tab, a Dremel with a small sanding drum is all that's needed. Hit the tab in the middle creating a crescent notch for the new stem to sit in or run it across the top and take about 1/16th of an inch off and you're set. I'll get the front done this week as well as the spare rear that I'm mounting a new 704 on.