well..thnx pix..dt tells the whole story..actually wt hpnd is in my network is we increased the RLT to 28 frames and the SD drop improved drastically(by 0.25%) and a lil improvement in TCH also..and was wondering hw ds cud happen..drilled down to lot of calculations(d one I referred above) and wasnt convincd enuf coz d calculations above doent allow so..