I understand how they are supposed to work (adapter fits in the fork just like the quill so the functionality of the headset doesn't need to change) but I was wondering if the lock nut becomes expendable if you have something else putting pressure on the adjustable race to keep the proper bearing adjustment. My adapter doesn't have the flaring portion at the base of the stem so my thought was to have a spacer (1 1/8th threadless)run from the bottom of the stem to the top of the adjustable race. My adapter has about 1/4" taller stack height than the stem so the spacer should stay anchored. I am thinking about doing this for cosmetic reasons only, but wanted to make sure that it would work.