I did pretty much the same thing but mine is the newer rest but now I have the option of joystick or standard and used Edgewood bags. I use a Bulls Bag and an Armegeddon rear bag a good bit. I also have Accu-Tac, Atlas and Harris for prone shootingI have an older caldwell front rest. You can replace the bag if that's all you want to do. I added a shade tree top to mine. I have a small protektor rear bag with heavy sand in it.