What the fright instructor was teaching you is called a soft field take off. It is a valid way of taking off from rough or soft fields.. It just gets you into the air quicker.. it is the same technique with both tail wheel and trike gear airplanes.. you hold full up elevater and throttle up pretty quickly.. It gets you off the ground quicker.. just be carefull to get the nose over as soon as you get off the ground to let yourself accelerate.. it is not as safe of a method because of the slow rotation speed, but easier on the airplane when flying from a rough field.. I agree with the previous post about the larger wheels too. it will help alot. Good luck!

Cheers,

FW