Wpcredit is a nice program to check the chipset values. At first I used Wpcredit and Wpset to change and load the 4-way interleave values but I was getting boot-up errors every now and again. After installing beta4w, the boot errors have stopped. The important thing is to load the program during boot-up by adding a command into the Autoexec.bat file. After that, check the chipset values using Wpcredit, just don't change anything.
At any rate, use whichever program gives the best results. If Wpcredit/Wpset works for you, great. Go with it.