Don,
Here is the reason why the strikers have to "float". Because the entry door is forward of the front axle and suspension, the opening for the entry door is subject to change. It is like a "parallelogram" dependent on Air leveling, jacks (if equipped), and sunlight on the door skin. The changes are just small enough to put the door in a bind and trap you inside. The engineers came up with the floating strikers to secure the door and still be compliant to D.O.T. standards and requirements. It is not uncommon to find someone has secured the strikers thinking they have fixed it. Eric and I have delt with this over the years, so please take your time and correct the strikers so they float. They should be tight enough that they do not loosen from contact with the door 2 stage latch but still move up or down as necessary. Hope this helps, Fred