This airplane will climb on you with power on....with that said I agree with missleman....don't read into your instructions.....
Ok the best thing to do is trim your airplane at 1/2 throttle or a bit less, to fly straight and level with thumbs off....this is where you will be doing most of your flying....flat bottom wing will climb on you with power.....but that is ok...as when you add power your wanting to go up anyway.....
As missleman said fly it. Then talk it over with your instructor if you need one. Make adjustments as required