My covering method is the same for any surface, any covering. it's a combination of a skill learned from a recognized expert in the subject, and some instructions used for a completely different process:

1) Grab a covering iron, a heat gun, and an old sock. Not a covering sock, a sock sock...the kind you wear on your feet. Ball the sock up to about the size of a tennis ball.

2) Lay the covering into/onto/around/over the part. You're not looking for a smooth, exact fit...but try to get it to lay down "good enough"...basically, move it around so it sits as flat as you can get it, but don't stress over trying to get it to lay perfect.

3) Tack the covering down along the edges with the iron. On, say, a flat stab, this is pretty easy to figure out. In a over a complex curve, it's a bit harder. Basically, what you're looking to do is to prevent any shrinking that pulls covering edges up and away from the surface. So, find the "farthest" points from the center of contact, and tack those...then tack a few bits in between those.

Note...you're not trying to seal up the entire perimeter...you're just tacking enough so that as the covering shrinks, it has something to "pull against". Remember, by definition, covering will attempt to pull FROM THE CENTER OF THE PIECE equally in all directions...Imagine how a circle might shrink to a dot, and you'll have the mental image.

4) Begin heating, slowly, with the heat gun. Use the gun to pull the covering tight, and shrink out any wrinkles or deformations. As the covering shrinks down and contacts the surface, push it down...HARD (as hard as you dare, given whatever surface you're working with)...with the sock, working the sock behind the path of the gun. Ideally, you'll work from a "corner" of the surface, fanning out in broader and broader "sweeps" as you go.

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It takes a bit of practice, but once you get the hang of it, you'll turn out glass-smooth covering jobs over even the most complicated of curves, AND the sealing with the sock will force the adhesive into the wood, meaning the covering job will NEVER bubble or wrinkle, no matter what conditions you put it in.