Assuming a properly balanced and trimmed plane, the biggest thing is managing your momentum. The plane will slow down in a glide much faster than you are used to, so stalls come on quite suddenly. You have to really have your eyes on the plane and know how to recognize a stall coming on so you can be ready with the throttle. If you want to prepare, take the 4 star and practice doing landings at maybe 1/4 throttle, keeping the plane fast enough that you could just pull it back up if you wanted to.