Hello. I am trying to find performance information on ul's and lsa's. I live at 7000 feet in Wyoming. I learned to fly in a cessna 150 w/a 150 hp upgrade. This plane lifted off and climb out at 700fpm. at 11000 feet performance was very minimal. Doe's anyone have performance on low hp and high altitude? Will the Rotax 503 preform at my altitude? Thanks