So my new stem and spacers finally showed up, I attempted to install them before I had to leave to head up to Inverness. My new stem is smaller than the Diety one that came on the bike, no matter what combination of spacers I use I end up with about a 1mm gap at the top of the steerer tube. The only way I can get it to work is to use the 10mm spacer below the stem and none above it, just the swat tool. Do I need a spacer under the swat tool or can I just tighten it down and be good to go?