ORIGINAL: invertmast

There is no reason you can't get that model into a 100meter long strip even with tree's on either end. The problem is your technique. Your going to have to fly it different than that carbon Z yak. Take the model up high, and practice flying it around with about 1/4 stick deflection of up elevator and with just enough power to maintain altitude. When done correctly you should be maintaining altitude without speeding up or slowing down. Do this with varying degree's of stick deflection and power settings until you know what stick deflection and power setting gets you the slowest possible flying speed without a stall. Now that you know that position you want to use a slightly higher power setting and slightly lower up elevator stick deflection setting.
Now start practicing approaches using the above known settings. When done correctly you should be able to hold a bit of elevator and adjust your throttle position to increase or decrease your descent rate, which will also help adjust the touchdown aiming point on the runway.