Alright so I was the guy who said OpenVPN on a Pi worked and I just ran the same experiment with split testing tools and holy cow the advice out there is terrible. Every YouTuber acts like their method is some secret code but theyre just running traffic to a binom landing page split and calling it sophisticated. I actually tried a proper A/B test for two different CRMs on a DOI sweepstakes flow. First tool was the cloud one everyone pushes super expensive and slow honestly the numbers lagged by like an hour made decisions impossible. Switched to a simple server-side script I pieced together with the help of that old Pi setup honestly the CR difference was maybe 2% but my speed to kill losers doubled cuz the data was real-time I could see a variation tanking and cap it in five minutes not two hours. The hard part isnt the tool its the discipline to actually look at the numbers and not get emotional. Show me the numbers or you're just guessing and most of these tools are built for guessing.