Zipp 909 Wheel decals Applying, any tricks?

I bought a old pair of zipp 909 wheel set of Ebay, I bought some new decals to spice them up!!!,Is there any tricks to applying them and working out the spacing???, I am putting on 3 decals each side
.

Any Tricks Anyone???

It can be difficult, measure the rim and tape them on first to het an idea of where you want them
.