The larger lenses do increase the FOV but they are blurry around the edges so it doesn't really provide much more information. You don't have to do anything different other than print out the larger lens holders. I am still experimenting with different lenses. Might be worth waiting until I get a chance to try the smaller focal length versions to see if they are better. OTOH, at $4.50 each its not like you are out a lot if you decide to use a different lens in the end. There will always be friends willing to take your lenses and spare VR goggles off your hands :-).