I replaced my original batwing without the wingman with a Jack, then replaced the Jack with the Razar. The Razar will use one of the existing risers or you can use the provided shorter one. I too replaced the original power supply with the Sensar Pro. Each change showed marginal improvement. The best you can do is the Batwing with the Wingman, Sensar Pro, and make sure all your connections are corrosion free and in good conditions.
OTA tv is a hit or miss proposition. It's great when you get a good signal, and not so good if you don't. If you are in rural areas, no matter how much you spend, tweak the system you will still yell at the box.