I hate to say it, but the little oak tree will one day become a big tree. Transplant it now if you want to continue to fly on your land. Another couple of tricks that is both helpful but degrades the planes takeoff performance is to tighten the wheel collors a little to add some more friction on the wheels (they are now your brakes). Or go to smaller wheels. Depending on how long your runway is, you might want to start trying to land on the "numbers" (the end of the runway) just like on full size. A couple of good tricks in learning spot landings (or close to where you want to land consistanly) is to put a paper plate (or paint a white circle) on the runway and practice hitting it with your mains 7 times out of ten (or just be real close). Not only will it help you out with your landings, it may be good practice for future fun-fly events. Dead stick landings can be unnerving, but if you are familier enough with your plane and have really gotten your landings down using the above method, you should not have to worry about a long roll out unless you are coming in with a lot of airspeed.