You'll have to leave the leads a little longer, so it'll allow you to either frame your coils (like picture below, pre bending the leads so the coil is already centered before being installed) or at least give you a little extra play when centering your builds, which will in turn make wicking easier
As you can see, if the leads were straight, the coil would be sitting outside the RDA deck, but leaving it longer allows you to manipulate the coils and center them. If you insert the leads all the way in, and have the coils tighter to the posts, it won't allow you to push and bend them into the middle. It'll take some practice, but you'll eventually get used to it and it'll become second nature.
I hope that makes sense, and I hope you get your vape setup working right, so you can Vape On!