Weighted boats and technique

I am wondering how others feel about weighted boats and riders losing technique/getting lazy? I personally have never ridden behind a over stock weighted boat, but I have noticed that from one smaller wake to a larger Supra wake that I forget about technique more and my riding suffers. So when I see someone needing 4000+ lbs of ballast is it because you want to and have the technique down or do you need it in order to do the tricks? As we have all seen the Byerly film of him killing it behind a barefoot 200 is the weight truly necessary?