Hi again brandon,nice mower,i like it. if it was me in your shoes,i would have got familiar with the handling of the mower BEFORE i attach the rear stander.a wet saturated lawn is going to affect the tire marks on the lawn during a turn (each rear wheel is powered,right?)practice will improve your turning and straight line performance. the straightness of your cuts don't look that bad.is that mud flap looking device your striper?yes?then i would work on 'like you say' adding weight at the bottom and maybe adding extra length to the flap but not too much so as not to interfere with undercarraige components while you are making short tight turn-a-bouts(if you do).longer thicker grass blades will need extra "oompff" from a striper to lay down the grass more. practice, practice you'll get it. don't worry,looks real nice for your first time.