Yea my FIL's theory is you mow shorter so you don't have to mow as often..! He shaves his grass he doesn't mow it...Wow! 2" is short. Around here 3 1/2" to 4" is recommended. Remember, longer grass shades out the weeds.
An issue with older mower decks like is on Wheel Horse is, they often cut at a maximum of 2 1/2 to 2 3/4. Changing the guide wheels for bigger ones helps.