|For my speed skates I center the skate main axis the same way. Like this, you are sure to balance equally your weight on both sides of the skate. Another tip: once you have placed your plates/boots, it's easy to mark the boot places for drilling with the white "paint" pen brush (Blanco?) you use for "erasing" writings on paper. It's very easy to mount the boots if you are carefull. Just a last thing: be very carefull to have the 2 skates mounted the same way (maybe 1mm max tolerance?). Have fun !!!!!