ORIGINAL: Trembow
I would be more concerned about damage to the bow than accuracy!
If you have it turned all the way down to 52, your limb bolts are probably about to strip and fly out!!!!
That will almost definitely void your warranty too.
Find a Mathews Proshop and have the limbs swapped out if you can.
For answers specific to your bow, try the folks over at:
http://forums.mathewsinc.com/
my thoughts exactly......my friend once turned his bow waayyyy down because he said he liked pulling the lower weight. when he took it to a pro shop they told him it was a good thing he hadnt shot yet because the limb bolts barely had a grip and the threads probably wouldve stripped.
IMO those limb ratings are there for a reason and my vote is for switching out limbs if you wanna keep the 52 lb draw.