I have an MG Radical MP which has a stock flex rating of 57. I love the comfort of this racquet but I was looking for a little more stability and plow through. I added about 4g of lead tape total to 3 and 9 'o clock (2g on each side) and it helped a lot in places where I found the racquet lacking. So my question is, does adding lead tape to stabilize the racquet effectively change it's flex rating? For instance, does adding lead tape to my MG Radical change the flex rating to something closer to 60?